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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Leah Heil

Bib: 21339 •F •Age: N/A

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 39%
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds
Personalized for Leah

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 · 8:04/mi at mile 9.3

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
25:46
3.11 mi
Rank: #18828
Start → 5K
25:46 | 8:18/mi
10K
51:19
6.21 mi
Rank: #18768 (+60)
5K → 10K
25:33 | 8:14/mi
15K
1:16:24
9.32 mi
Rank: #18360 (+408)
10K → 15K
25:05 | 8:05/mi
20K
1:41:43
12.43 mi
Rank: #18083 (+277)
15K → 20K
25:19 | 8:09/mi
HALF
1:47:14
13.11 mi
Rank: #18048 (+35)
20K → HALF
5:31 | 8:06/mi
25K
2:07:01
15.53 mi
Rank: #17801 (+247)
HALF → 25K
19:47 | 8:10/mi
30K
2:33:20
18.64 mi
Rank: #17555 (+246)
25K → 30K
26:19 | 8:29/mi
20M
2:45:03
20.00 mi
Rank: #17491 (+64)
30K → 20M
11:43 | 8:38/mi
21M
2:54:28
21.00 mi
Rank: #17507 (-16)
20M → 21M
9:25 | 9:25/mi
35K
3:00:55
21.75 mi
Rank: #17517 (-10)
21M → 35K
6:27 | 8:38/mi
23M
3:11:51
23.00 mi
Rank: #17481 (+36)
35K → 23M
10:56 | 8:45/mi
24M
3:20:30
24.00 mi
Rank: #17469 (+12)
23M → 24M
8:39 | 8:39/mi
40K
3:28:04
24.85 mi
Rank: #17451 (+18)
24M → 40K
7:34 | 8:51/mi
25.2M
3:31:32
25.20 mi
Rank: #17488 (-37)
40K → 25.2M
3:28 | 10:04/mi
FINISH
3:40:02
26.22 mi
Rank: #17477 (+11)
25.2M → FINISH
8:30 | 8:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:14
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:52:48
Pace8:37 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:4525:468:1825:46
8:18
-
10K
6.21 mi11:53:1851:198:1625:33
8:14
-0:04
15K
9.32 mi12:18:231:16:248:1225:05
8:05
-0:09
20K
12.43 mi12:43:421:41:438:1225:19
8:09
+0:04
HALF
13.11 mi12:49:131:47:148:115:31
8:06
-0:03
25K
15.53 mi13:09:002:07:018:1119:47
8:10
+0:04
30K
18.64 mi13:35:192:33:208:1426:19
8:29
+0:19
20M
20.00 mi13:47:022:45:038:1611:43
8:38
+0:09
21M
21.00 mi13:56:272:54:288:199:25
9:25
+0:47
35K
21.75 mi14:02:543:00:558:206:27
8:38
-0:47
23M
23.00 mi14:13:503:11:518:2110:56
8:45
+0:07
24M
24.00 mi14:22:293:20:308:228:39
8:39
-0:06
40K
24.85 mi14:30:033:28:048:237:34
8:51
+0:12
25.2M
25.20 mi14:33:313:31:328:243:28
10:04
+1:13
FINISH
26.22 mi14:42:013:40:028:248:30
8:21
-1:43

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

8:05 /mi

Average Pace

8:24 /mi

Slowest Pace

10:04 /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

1:15:42

34% of race

Time at Steady Pace

1:52:57

51% of race

Time at Slower Pace

31:23

14% of race

Average Pace: 8:24 /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 mi11:27:4525:468:1825:46
8:18
#18828
10K
6.21 mi11:53:1851:198:1625:33
8:14
#18768
15K
9.32 mi12:18:231:16:248:1225:05
8:05
#18360
20K
12.43 mi12:43:421:41:438:1225:19
8:09
#18083
HALF
13.11 mi12:49:131:47:148:115:31
8:06
#18048
25K
15.53 mi13:09:002:07:018:1119:47
8:10
#17801
30K
18.64 mi13:35:192:33:208:1426:19
8:29
#17555
20M
20.00 mi13:47:022:45:038:1611:43
8:38
#17491
21M
21.00 mi13:56:272:54:288:199:25
9:25
#17507
35K
21.75 mi14:02:543:00:558:206:27
8:38
#17517
23M
23.00 mi14:13:503:11:518:2110:56
8:45
#17481
24M
24.00 mi14:22:293:20:308:228:39
8:39
#17469
40K
24.85 mi14:30:033:28:048:237:34
8:51
#17451
25.2M
25.20 mi14:33:313:31:328:243:28
10:04
#17488
FINISH
26.22 mi14:42:013:40:028:248:30
8:21
#17477
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 mi188286991699117537(Top 60%)6222(Top 49%)6222(Top 348%)
10K6.21 mi3.10 mi18768+606930+616930+6118715(Top 64%)6863(Top 55%)6863(Top 384%)
15K9.32 mi3.11 mi18360+4086689+2416689+24117537(Top 60%)6222(Top 49%)6222(Top 348%)
20K12.43 mi3.11 mi18083+2776531+1586531+15817183(Top 59%)6028(Top 48%)6028(Top 338%)
HALF13.11 mi0.68 mi18048+356516+156516+1517780(Top 61%)6357(Top 51%)6357(Top 356%)
25K15.53 mi2.42 mi17801+2476383+1336383+13316550(Top 57%)5744(Top 46%)5744(Top 322%)
30K18.64 mi3.11 mi17555+2466268+1156268+11516755(Top 58%)5967(Top 47%)5967(Top 334%)
20M20.00 mi1.36 mi17491+646254+146254+1416965(Top 58%)6176(Top 49%)6176(Top 346%)
21M21.00 mi1.00 mi17507-166287-336287-3318149(Top 63%)6867(Top 55%)6867(Top 384%)
35K21.75 mi0.75 mi17517-106305-186305-1818237(Top 63%)7019(Top 56%)7019(Top 393%)
23M23.00 mi1.25 mi17481+366311-66311-617127(Top 59%)6497(Top 52%)6497(Top 364%)
24M24.00 mi1.00 mi17469+126336-256336-2517770(Top 61%)6870(Top 55%)6870(Top 385%)
40K24.85 mi0.85 mi17451+186341-56341-517668(Top 61%)6865(Top 55%)6865(Top 384%)
25.2M25.20 mi0.35 mi17488-376369-286369-2819606(Top 68%)7861(Top 62%)7861(Top 440%)
FINISH26.22 mi1.02 mi17477+116380-116380-1117315(Top 60%)6679(Top 53%)6679(Top 374%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21
+97ft-345ft

Overall

17537

Females

6222

F45-49

6222

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18715

Females

6863

F45-49

6863

10K→15K

6.2 - 9.3 mi

Top 60%
×3
+67ft-78ft

Overall

17537

Females

6222

F45-49

6222

15K→20K

9.3 - 12.4 mi

Top 59%
×5
+106ft-86ft

Overall

17183

Females

6028

F45-49

6028

20K→HALF

12.4 - 13.1 mi

Top 61%
×2
+19ft-37ft

Overall

17780

Females

6357

F45-49

6357

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16550

Females

5744

F45-49

5744

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16755

Females

5967

F45-49

5967

30K→20M

18.6 - 20.0 mi

Top 58%
×5
+64ft-50ft

Overall

16965

Females

6176

F45-49

6176

20M→21M

20.0 - 21.0 mi

Top 63%
×8
+106ft-24ft

Overall

18149

Females

6867

F45-49

6867

21M→35K

21.0 - 21.8 mi

Top 63%
×7
+17ft-86ft

Overall

18237

Females

7019

F45-49

7019

35K→23M

21.8 - 23.0 mi

Top 59%
×5
+23ft-63ft

Overall

17127

Females

6497

F45-49

6497

23M→24M

23.0 - 24.0 mi

Top 61%
×6
+12ft-82ft

Overall

17770

Females

6870

F45-49

6870

24M→40K

24.0 - 24.9 mi

Top 61%
×1
+6ft-20ft

Overall

17668

Females

6865

F45-49

6865

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19606

Females

7861

F45-49

7861

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17315

Females

6679

F45-49

6679

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2262*
Passed By
911
Net Change
+1351
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18828
5K → 10K260*200+60#18828#18768
10K → 15K453*45+408#18768#18360
15K → 20K323*46+277#18360#18083
20K → HALF4914+35#18083#18048
HALF → 25K263*16+247#18048#17801
25K → 30K325*79+246#17801#17555
30K → 20M11652+64#17555#17491
20M → 21M7389-16#17491#17507
21M → 35K5565-10#17507#17517
35K → 23M11175+36#17517#17481
23M → 24M7563+12#17481#17469
24M → 40K7759+18#17469#17451
40K → 25.2M1855-37#17451#17488
25.2M → FINISH6453+11#17488#17477
TOTALS2262*911+1351

* 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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