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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jennifer Byers

Bib: 7905 •F •Age: N/A

FL

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
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds

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
28:36
3.11 mi
Rank: #23482
Start → 5K
28:36 | 9:13/mi
10K
57:52
6.21 mi
Rank: #23959 (-477)
5K → 10K
29:16 | 9:26/mi
15K
1:26:35
9.32 mi
Rank: #23876 (+83)
10K → 15K
28:43 | 9:15/mi
20K
1:55:31
12.43 mi
Rank: #23689 (+187)
15K → 20K
28:56 | 9:19/mi
HALF
2:01:45
13.11 mi
Rank: #23667 (+22)
20K → HALF
6:14 | 9:09/mi
25K
2:24:50
15.53 mi
Rank: #23527 (+140)
HALF → 25K
23:05 | 9:32/mi
30K
2:54:52
18.64 mi
Rank: #23266 (+261)
25K → 30K
30:02 | 9:41/mi
20M
3:08:16
20.00 mi
Rank: #23163 (+103)
30K → 20M
13:24 | 9:52/mi
21M
3:18:25
21.00 mi
Rank: #23012 (+151)
20M → 21M
10:09 | 10:09/mi
35K
3:25:20
21.75 mi
Rank: #22934 (+78)
21M → 35K
6:55 | 9:15/mi
23M
3:37:20
23.00 mi
Rank: #22797 (+137)
35K → 23M
12:00 | 9:36/mi
24M
3:46:37
24.00 mi
Rank: #22716 (+81)
23M → 24M
9:17 | 9:17/mi
40K
3:54:24
24.85 mi
Rank: #22573 (+143)
24M → 40K
7:47 | 9:07/mi
25.2M
3:57:38
25.20 mi
Rank: #22494 (+79)
40K → 25.2M
3:14 | 9:23/mi
FINISH
4:06:10
26.22 mi
Rank: #22342 (+152)
25.2M → FINISH
8:32 | 8:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:01:45
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:04:25
Pace9:30 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:36:4328:369:1328:36
9:13
-
10K
6.21 mi11:05:5957:529:1929:16
9:26
+0:13
15K
9.32 mi11:34:421:26:359:1828:43
9:15
-0:11
20K
12.43 mi12:03:381:55:319:1828:56
9:19
+0:04
HALF
13.11 mi12:09:522:01:459:186:14
9:09
-0:10
25K
15.53 mi12:32:572:24:509:2023:05
9:32
+0:23
30K
18.64 mi13:02:592:54:529:2330:02
9:41
+0:09
20M
20.00 mi13:16:233:08:169:2513:24
9:52
+0:11
21M
21.00 mi13:26:323:18:259:2710:09
10:09
+0:17
35K
21.75 mi13:33:273:25:209:276:55
9:15
-0:54
23M
23.00 mi13:45:273:37:209:2712:00
9:36
+0:21
24M
24.00 mi13:54:443:46:379:279:17
9:17
-0:19
40K
24.85 mi14:02:313:54:249:267:47
9:07
-0:10
25.2M
25.20 mi14:05:453:57:389:263:14
9:23
+0:16
FINISH
26.22 mi14:14:174:06:109:248:32
8:23
-1:00

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

8:23 /mi

Average Pace

9:24 /mi

Slowest Pace

10:09 /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

16:19

7% of race

Time at Steady Pace

2:21:11

57% of race

Time at Slower Pace

1:28:40

36% of race

Average Pace: 9:23 /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 mi10:36:4328:369:1328:36
9:13
#23482
10K
6.21 mi11:05:5957:529:1929:16
9:26
#23959
15K
9.32 mi11:34:421:26:359:1828:43
9:15
#23876
20K
12.43 mi12:03:381:55:319:1828:56
9:19
#23689
HALF
13.11 mi12:09:522:01:459:186:14
9:09
#23667
25K
15.53 mi12:32:572:24:509:2023:05
9:32
#23527
30K
18.64 mi13:02:592:54:529:2330:02
9:41
#23266
20M
20.00 mi13:16:233:08:169:2513:24
9:52
#23163
21M
21.00 mi13:26:323:18:259:2710:09
10:09
#23012
35K
21.75 mi13:33:273:25:209:276:55
9:15
#22934
23M
23.00 mi13:45:273:37:209:2712:00
9:36
#22797
24M
24.00 mi13:54:443:46:379:279:17
9:17
#22716
40K
24.85 mi14:02:313:54:249:267:47
9:07
#22573
25.2M
25.20 mi14:05:453:57:389:263:14
9:23
#22494
FINISH
26.22 mi14:14:174:06:109:248:32
8:23
#22342
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 mi234829413941323647(Top 81%)9478(Top 75%)9478(Top 531%)
10K6.21 mi3.10 mi23959-4779635-2229635-22224341(Top 84%)9830(Top 78%)9830(Top 550%)
15K9.32 mi3.11 mi23876+839593+429593+4223647(Top 81%)9478(Top 75%)9478(Top 531%)
20K12.43 mi3.11 mi23689+1879503+909503+9023176(Top 80%)9268(Top 74%)9268(Top 519%)
HALF13.11 mi0.68 mi23667+229495+89495+823301(Top 80%)9309(Top 74%)9309(Top 521%)
25K15.53 mi2.42 mi23527+1409439+569439+5623085(Top 80%)9236(Top 73%)9236(Top 517%)
30K18.64 mi3.11 mi23266+2619351+889351+8822168(Top 76%)8848(Top 70%)8848(Top 495%)
20M20.00 mi1.36 mi23163+1039319+329319+3222225(Top 77%)8962(Top 71%)8962(Top 502%)
21M21.00 mi1.00 mi23012+1519245+749245+7420936(Top 72%)8344(Top 66%)8344(Top 467%)
35K21.75 mi0.75 mi22934+789214+319214+3120999(Top 72%)8445(Top 67%)8445(Top 473%)
23M23.00 mi1.25 mi22797+1379163+519163+5120903(Top 72%)8418(Top 67%)8418(Top 471%)
24M24.00 mi1.00 mi22716+819142+219142+2120601(Top 71%)8348(Top 66%)8348(Top 467%)
40K24.85 mi0.85 mi22573+1439080+629080+6218917(Top 65%)7539(Top 60%)7539(Top 422%)
25.2M25.20 mi0.35 mi22494+799043+379043+3716838(Top 58%)6444(Top 51%)6444(Top 361%)
FINISH26.22 mi1.02 mi22342+1528968+758968+7517517(Top 60%)6803(Top 54%)6803(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21
+97ft-345ft

Overall

23647

Females

9478

F45-49

9478

5K→10K

3.1 - 6.2 mi

Top 84%
×5
+79ft-138ft

Overall

24341

Females

9830

F45-49

9830

10K→15K

6.2 - 9.3 mi

Top 81%
×3
+67ft-78ft

Overall

23647

Females

9478

F45-49

9478

15K→20K

9.3 - 12.4 mi

Top 80%
×5
+106ft-86ft

Overall

23176

Females

9268

F45-49

9268

20K→HALF

12.4 - 13.1 mi

Top 80%
×2
+19ft-37ft

Overall

23301

Females

9309

F45-49

9309

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23085

Females

9236

F45-49

9236

25K→30K

15.5 - 18.6 mi

Top 76%
×9
+181ft-148ft

Overall

22168

Females

8848

F45-49

8848

30K→20M

18.6 - 20.0 mi

Top 77%
×5
+64ft-50ft

Overall

22225

Females

8962

F45-49

8962

20M→21M

20.0 - 21.0 mi

Top 72%
×8
+106ft-24ft

Overall

20936

Females

8344

F45-49

8344

21M→35K

21.0 - 21.8 mi

Top 72%
×7
+17ft-86ft

Overall

20999

Females

8445

F45-49

8445

35K→23M

21.8 - 23.0 mi

Top 72%
×5
+23ft-63ft

Overall

20903

Females

8418

F45-49

8418

23M→24M

23.0 - 24.0 mi

Top 71%
×6
+12ft-82ft

Overall

20601

Females

8348

F45-49

8348

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

18917

Females

7539

F45-49

7539

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1
+13ft-16ft

Overall

16838

Females

6444

F45-49

6444

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17517

Females

6803

F45-49

6803

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2001*
Passed By
523
Net Change
+1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23482
5K → 10K61200-477#23482#23959
10K → 15K196113+83#23959#23876
15K → 20K239*52+187#23876#23689
20K → HALF3513+22#23689#23667
HALF → 25K17939+140#23667#23527
25K → 30K293*32+261#23527#23266
30K → 20M13330+103#23266#23163
20M → 21M16413+151#23163#23012
21M → 35K879+78#23012#22934
35K → 23M14710+137#22934#22797
23M → 24M887+81#22797#22716
24M → 40K1463+143#22716#22573
40K → 25.2M801+79#22573#22494
25.2M → FINISH1531+152#22494#22342
TOTALS2001*523+1140

* 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

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