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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Nikki Kershaw

Bib: 23486 •F •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F50-54)
#0 / 1233
Race Day Weather
51°/41°F
overcast clouds
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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
27:35
3.11 mi
Rank: #22081
Start → 5K
27:35 | 8:53/mi
10K
54:54
6.21 mi
Rank: #21989 (+92)
5K → 10K
27:19 | 8:48/mi
15K
1:21:57
9.32 mi
Rank: #21759 (+230)
10K → 15K
27:03 | 8:43/mi
20K
1:49:24
12.43 mi
Rank: #21566 (+193)
15K → 20K
27:27 | 8:51/mi
HALF
1:55:19
13.11 mi
Rank: #21549 (+17)
20K → HALF
5:55 | 8:41/mi
25K
2:17:07
15.53 mi
Rank: #21454 (+95)
HALF → 25K
21:48 | 9:00/mi
30K
2:48:44
18.64 mi
Rank: #22000 (-546)
25K → 30K
31:37 | 10:11/mi
20M
3:01:48
20.00 mi
Rank: #21944 (+56)
30K → 20M
13:04 | 9:38/mi
21M
3:12:48
21.00 mi
Rank: #22036 (-92)
20M → 21M
11:00 | 11:00/mi
35K
3:19:49
21.75 mi
Rank: #22006 (+30)
21M → 35K
7:01 | 9:23/mi
23M
3:31:24
23.00 mi
Rank: #21887 (+119)
35K → 23M
11:35 | 9:16/mi
24M
3:40:30
24.00 mi
Rank: #21840 (+47)
23M → 24M
9:06 | 9:06/mi
40K
3:48:22
24.85 mi
Rank: #21761 (+79)
24M → 40K
7:52 | 9:13/mi
25.2M
3:51:43
25.20 mi
Rank: #21721 (+40)
40K → 25.2M
3:21 | 9:43/mi
FINISH
4:00:29
26.22 mi
Rank: #21635 (+86)
25.2M → FINISH
8:46 | 8:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:19
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:05:10
Pace9:33 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:0427:358:5327:35
8:53
-
10K
6.21 mi11:58:2354:548:5127:19
8:48
-0:05
15K
9.32 mi12:25:261:21:578:4827:03
8:43
-0:05
20K
12.43 mi12:52:531:49:248:4927:27
8:51
+0:08
HALF
13.11 mi12:58:481:55:198:485:55
8:41
-0:10
25K
15.53 mi13:20:362:17:078:5021:48
9:00
+0:19
30K
18.64 mi13:52:132:48:449:0431:37
10:11
+1:11
20M
20.00 mi14:05:173:01:489:0613:04
9:38
-0:33
21M
21.00 mi14:16:173:12:489:1111:00
11:00
+1:22
35K
21.75 mi14:23:183:19:499:127:01
9:23
-1:37
23M
23.00 mi14:34:533:31:249:1211:35
9:16
-0:07
24M
24.00 mi14:43:593:40:309:129:06
9:06
-0:10
40K
24.85 mi14:51:513:48:229:127:52
9:13
+0:07
25.2M
25.20 mi14:55:123:51:439:123:21
9:43
+0:30
FINISH
26.22 mi15:03:584:00:299:118:46
8:37
-1:06

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

8:37 /mi

Average Pace

9:11 /mi

Slowest Pace

11:00 /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

41:44

17% of race

Time at Steady Pace

2:19:43

58% of race

Time at Slower Pace

59:02

25% of race

Average Pace: 9:10 /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 mi11:31:0427:358:5327:35
8:53
#22081
10K
6.21 mi11:58:2354:548:5127:19
8:48
#21989
15K
9.32 mi12:25:261:21:578:4827:03
8:43
#21759
20K
12.43 mi12:52:531:49:248:4927:27
8:51
#21566
HALF
13.11 mi12:58:481:55:198:485:55
8:41
#21549
25K
15.53 mi13:20:362:17:078:5021:48
9:00
#21454
30K
18.64 mi13:52:132:48:449:0431:37
10:11
#22000
20M
20.00 mi14:05:173:01:489:0613:04
9:38
#21944
21M
21.00 mi14:16:173:12:489:1111:00
11:00
#22036
35K
21.75 mi14:23:183:19:499:127:01
9:23
#22006
23M
23.00 mi14:34:533:31:249:1211:35
9:16
#21887
24M
24.00 mi14:43:593:40:309:129:06
9:06
#21840
40K
24.85 mi14:51:513:48:229:127:52
9:13
#21761
25.2M
25.20 mi14:55:123:51:439:123:21
9:43
#21721
FINISH
26.22 mi15:03:584:00:299:118:46
8:37
#21635
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi220818730873021247(Top 73%)8261(Top 66%)8261(Top 670%)
10K6.21 mi3.10 mi21989+928663+678663+6721888(Top 75%)8596(Top 68%)8596(Top 697%)
15K9.32 mi3.11 mi21759+2308537+1268537+12621247(Top 73%)8261(Top 66%)8261(Top 670%)
20K12.43 mi3.11 mi21566+1938445+928445+9221167(Top 73%)8233(Top 65%)8233(Top 668%)
HALF13.11 mi0.68 mi21549+178437+88437+821258(Top 73%)8257(Top 66%)8257(Top 670%)
25K15.53 mi2.42 mi21454+958397+408397+4021139(Top 73%)8237(Top 65%)8237(Top 668%)
30K18.64 mi3.11 mi22000-5468682-2858682-28523569(Top 81%)9601(Top 76%)9601(Top 779%)
20M20.00 mi1.36 mi21944+568670+128670+1221490(Top 74%)8599(Top 68%)8599(Top 697%)
21M21.00 mi1.00 mi22036-928735-658735-6523110(Top 80%)9482(Top 75%)9482(Top 769%)
35K21.75 mi0.75 mi22006+308730+58730+521431(Top 74%)8660(Top 69%)8660(Top 702%)
23M23.00 mi1.25 mi21887+1198689+418689+4119676(Top 68%)7824(Top 62%)7824(Top 635%)
24M24.00 mi1.00 mi21840+478670+198670+1919906(Top 69%)8015(Top 64%)8015(Top 650%)
40K24.85 mi0.85 mi21761+798638+328638+3219329(Top 67%)7746(Top 62%)7746(Top 628%)
25.2M25.20 mi0.35 mi21721+408625+138625+1318364(Top 63%)7256(Top 58%)7256(Top 588%)
FINISH26.22 mi1.02 mi21635+868579+468579+4618715(Top 64%)7421(Top 59%)7421(Top 602%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21247

Females

8261

F50-54

8261

5K→10K

3.1 - 6.2 mi

Top 75%
×5
+79ft-138ft

Overall

21888

Females

8596

F50-54

8596

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21247

Females

8261

F50-54

8261

15K→20K

9.3 - 12.4 mi

Top 73%
×5
+106ft-86ft

Overall

21167

Females

8233

F50-54

8233

20K→HALF

12.4 - 13.1 mi

Top 73%
×2
+19ft-37ft

Overall

21258

Females

8257

F50-54

8257

HALF→25K

13.1 - 15.5 mi

Top 73%
×4
+66ft-88ft

Overall

21139

Females

8237

F50-54

8237

25K→30K

15.5 - 18.6 mi

Top 81%
×9
+181ft-148ft

Overall

23569

Females

9601

F50-54

9601

30K→20M

18.6 - 20.0 mi

Top 74%
×5
+64ft-50ft

Overall

21490

Females

8599

F50-54

8599

20M→21M

20.0 - 21.0 mi

Top 80%
×8
+106ft-24ft

Overall

23110

Females

9482

F50-54

9482

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21431

Females

8660

F50-54

8660

35K→23M

21.8 - 23.0 mi

Top 68%
×5
+23ft-63ft

Overall

19676

Females

7824

F50-54

7824

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19906

Females

8015

F50-54

8015

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19329

Females

7746

F50-54

7746

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1
+13ft-16ft

Overall

18364

Females

7256

F50-54

7256

25.2M→FINISH

25.2 - 26.2 mi

Top 64%
×2
+22ft-21ft

Overall

18715

Females

7421

F50-54

7421

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1783*
Passed By
941
Net Change
+446
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22081
5K → 10K292*200+92#22081#21989
10K → 15K306*76+230#21989#21759
15K → 20K263*70+193#21759#21566
20K → HALF3821+17#21566#21549
HALF → 25K16267+95#21549#21454
25K → 30K50200-546#21454#22000
30K → 20M10145+56#22000#21944
20M → 21M57149-92#21944#22036
21M → 35K5727+30#22036#22006
35K → 23M14425+119#22006#21887
23M → 24M7225+47#21887#21840
24M → 40K9516+79#21840#21761
40K → 25.2M455+40#21761#21721
25.2M → FINISH10115+86#21721#21635
TOTALS1783*941+446

* 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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Activity Data

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