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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Stacey Kern

Bib: 21456 •F •Age: N/A

WY

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 41%
Masters (Masters Women)
#0 / 6862
Top 26%
Age Group (F45-49)
#0 / 1786
Top 31%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Stacey

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 7:25/mi at mile 26.2

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:38
3.11 mi
Rank: #20480
Start → 5K
26:38 | 8:35/mi
10K
51:40
6.21 mi
Rank: #19108 (+1372)
5K → 10K
25:02 | 8:04/mi
15K
1:16:39
9.32 mi
Rank: #18539 (+569)
10K → 15K
24:59 | 8:03/mi
20K
1:41:34
12.43 mi
Rank: #17992 (+547)
15K → 20K
24:55 | 8:02/mi
HALF
1:47:02
13.11 mi
Rank: #17948 (+44)
20K → HALF
5:28 | 8:02/mi
25K
2:06:34
15.53 mi
Rank: #17614 (+334)
HALF → 25K
19:32 | 8:04/mi
30K
2:31:30
18.64 mi
Rank: #16893 (+721)
25K → 30K
24:56 | 8:02/mi
20M
2:42:27
20.00 mi
Rank: #16629 (+264)
30K → 20M
10:57 | 8:04/mi
21M
2:51:01
21.00 mi
Rank: #16414 (+215)
20M → 21M
8:34 | 8:34/mi
35K
2:56:54
21.75 mi
Rank: #16277 (+137)
21M → 35K
5:53 | 7:52/mi
23M
3:06:49
23.00 mi
Rank: #16008 (+269)
35K → 23M
9:55 | 7:56/mi
24M
3:14:31
24.00 mi
Rank: #15819 (+189)
23M → 24M
7:42 | 7:42/mi
40K
3:21:10
24.85 mi
Rank: #15628 (+191)
24M → 40K
6:39 | 7:47/mi
25.2M
3:24:02
25.20 mi
Rank: #15554 (+74)
40K → 25.2M
2:52 | 8:19/mi
FINISH
3:31:35
26.22 mi
Rank: #15379 (+175)
25.2M → FINISH
7:33 | 7:25/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:47:02
Pace8:10 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:33
Pace7:59 /mi
📊Negative Split: 2.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:5326:388:3526:38
8:35
-
10K
6.21 mi11:52:5551:408:1925:02
8:04
-0:31
15K
9.32 mi12:17:541:16:398:1424:59
8:03
-0:01
20K
12.43 mi12:42:491:41:348:1124:55
8:02
-0:01
HALF
13.11 mi12:48:171:47:028:105:28
8:02
0:00
25K
15.53 mi13:07:492:06:348:0919:32
8:04
+0:02
30K
18.64 mi13:32:452:31:308:0824:56
8:02
-0:02
20M
20.00 mi13:43:422:42:278:0810:57
8:04
+0:02
21M
21.00 mi13:52:162:51:018:098:34
8:34
+0:30
35K
21.75 mi13:58:092:56:548:095:53
7:52
-0:42
23M
23.00 mi14:08:043:06:498:089:55
7:56
+0:04
24M
24.00 mi14:15:463:14:318:077:42
7:42
-0:14
40K
24.85 mi14:22:253:21:108:066:39
7:47
+0:05
25.2M
25.20 mi14:25:173:24:028:062:52
8:19
+0:32
FINISH
26.22 mi14:32:503:31:358:057:33
7:25
-0:54

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:25 /mi

Average Pace

8:05 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:53:31

82% of race

Time at Steady Pace

38:04

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:04 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:27:5326:388:3526:38
8:35
#20480
10K
6.21 mi11:52:5551:408:1925:02
8:04
#19108
15K
9.32 mi12:17:541:16:398:1424:59
8:03
#18539
20K
12.43 mi12:42:491:41:348:1124:55
8:02
#17992
HALF
13.11 mi12:48:171:47:028:105:28
8:02
#17948
25K
15.53 mi13:07:492:06:348:0919:32
8:04
#17614
30K
18.64 mi13:32:452:31:308:0824:56
8:02
#16893
20M
20.00 mi13:43:422:42:278:0810:57
8:04
#16629
21M
21.00 mi13:52:162:51:018:098:34
8:34
#16414
35K
21.75 mi13:58:092:56:548:095:53
7:52
#16277
23M
23.00 mi14:08:043:06:498:089:55
7:56
#16008
24M
24.00 mi14:15:463:14:318:077:42
7:42
#15819
40K
24.85 mi14:22:253:21:108:066:39
7:47
#15628
25.2M
25.20 mi14:25:173:24:028:062:52
8:19
#15554
FINISH
26.22 mi14:32:503:31:358:057:33
7:25
#15379
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi204807901790117320(Top 60%)6090(Top 48%)6090(Top 341%)
10K6.21 mi3.10 mi19108+13727126+7757126+77517670(Top 61%)6299(Top 50%)6299(Top 353%)
15K9.32 mi3.11 mi18539+5696777+3496777+34917320(Top 60%)6090(Top 48%)6090(Top 341%)
20K12.43 mi3.11 mi17992+5476486+2916486+29116262(Top 56%)5530(Top 44%)5530(Top 310%)
HALF13.11 mi0.68 mi17948+446458+286458+2817261(Top 59%)6044(Top 48%)6044(Top 338%)
25K15.53 mi2.42 mi17614+3346281+1776281+17715828(Top 55%)5321(Top 42%)5321(Top 298%)
30K18.64 mi3.11 mi16893+7215900+3815900+38113680(Top 47%)4229(Top 34%)4229(Top 237%)
20M20.00 mi1.36 mi16629+2645781+1195781+11913272(Top 46%)4098(Top 33%)4098(Top 229%)
21M21.00 mi1.00 mi16414+2155677+1045677+10413586(Top 47%)4378(Top 35%)4378(Top 245%)
35K21.75 mi0.75 mi16277+1375616+615616+6113598(Top 47%)4430(Top 35%)4430(Top 248%)
23M23.00 mi1.25 mi16008+2695489+1275489+12711976(Top 41%)3600(Top 29%)3600(Top 202%)
24M24.00 mi1.00 mi15819+1895389+1005389+10011598(Top 40%)3507(Top 28%)3507(Top 196%)
40K24.85 mi0.85 mi15628+1915300+895300+8910929(Top 38%)3242(Top 26%)3242(Top 182%)
25.2M25.20 mi0.35 mi15554+745272+285272+2810560(Top 36%)3140(Top 25%)3140(Top 176%)
FINISH26.22 mi1.02 mi15379+1755181+915181+9110789(Top 37%)3263(Top 26%)3263(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21
+97ft-345ft

Overall

17320

Females

6090

F45-49

6090

5K→10K

3.1 - 6.2 mi

Top 61%
×5
+79ft-138ft

Overall

17670

Females

6299

F45-49

6299

10K→15K

6.2 - 9.3 mi

Top 60%
×3
+67ft-78ft

Overall

17320

Females

6090

F45-49

6090

15K→20K

9.3 - 12.4 mi

Top 56%
×5
+106ft-86ft

Overall

16262

Females

5530

F45-49

5530

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17261

Females

6044

F45-49

6044

HALF→25K

13.1 - 15.5 mi

Top 55%
×4
+66ft-88ft

Overall

15828

Females

5321

F45-49

5321

25K→30K

15.5 - 18.6 mi

Top 47%
×9
+181ft-148ft

Overall

13680

Females

4229

F45-49

4229

30K→20M

18.6 - 20.0 mi

Top 46%
×5
+64ft-50ft

Overall

13272

Females

4098

F45-49

4098

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13586

Females

4378

F45-49

4378

21M→35K

21.0 - 21.8 mi

Top 47%
×7
+17ft-86ft

Overall

13598

Females

4430

F45-49

4430

35K→23M

21.8 - 23.0 mi

Top 41%
×5
+23ft-63ft

Overall

11976

Females

3600

F45-49

3600

23M→24M

23.0 - 24.0 mi

Top 40%
×6
+12ft-82ft

Overall

11598

Females

3507

F45-49

3507

24M→40K

24.0 - 24.9 mi

Top 38%
×1
+6ft-20ft

Overall

10929

Females

3242

F45-49

3242

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1
+13ft-16ft

Overall

10560

Females

3140

F45-49

3140

25.2M→FINISH

25.2 - 26.2 mi

Top 37%
×2
+22ft-21ft

Overall

10789

Females

3263

F45-49

3263

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
5231*
Passed By
130
Net Change
+5101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20480
5K → 10K1390*18+1372#20480#19108
10K → 15K597*28+569#19108#18539
15K → 20K558*11+547#18539#17992
20K → HALF6218+44#17992#17948
HALF → 25K345*11+334#17948#17614
25K → 30K725*4+721#17614#16893
30K → 20M265*1+264#16893#16629
20M → 21M225*10+215#16629#16414
21M → 35K1425+137#16414#16277
35K → 23M272*3+269#16277#16008
23M → 24M1956+189#16008#15819
24M → 40K1943+191#15819#15628
40K → 25.2M773+74#15628#15554
25.2M → FINISH1849+175#15554#15379
TOTALS5231*130+5101

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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