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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Shelley Kaiser

Bib: 17863 •F •Age: N/A

OR

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 40%
Masters (Masters Women)
#0 / 6862
Top 25%
Age Group (F45-49)
#0 / 1786
Top 29%
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
25:35
3.11 mi
Rank: #18435
Start → 5K
25:35 | 8:15/mi
10K
50:38
6.21 mi
Rank: #18086 (+349)
5K → 10K
25:03 | 8:04/mi
15K
1:15:25
9.32 mi
Rank: #17708 (+378)
10K → 15K
24:47 | 7:59/mi
20K
1:40:55
12.43 mi
Rank: #17654 (+54)
15K → 20K
25:30 | 8:13/mi
HALF
1:46:29
13.11 mi
Rank: #17687 (-33)
20K → HALF
5:34 | 8:10/mi
25K
2:06:57
15.53 mi
Rank: #17758 (-71)
HALF → 25K
20:28 | 8:27/mi
30K
2:33:10
18.64 mi
Rank: #17490 (+268)
25K → 30K
26:13 | 8:27/mi
20M
2:44:02
20.00 mi
Rank: #17151 (+339)
30K → 20M
10:52 | 8:01/mi
21M
2:52:20
21.00 mi
Rank: #16845 (+306)
20M → 21M
8:18 | 8:18/mi
35K
2:57:55
21.75 mi
Rank: #16607 (+238)
21M → 35K
5:35 | 7:28/mi
23M
3:07:16
23.00 mi
Rank: #16138 (+469)
35K → 23M
9:21 | 7:29/mi
24M
3:14:46
24.00 mi
Rank: #15897 (+241)
23M → 24M
7:30 | 7:30/mi
40K
3:21:21
24.85 mi
Rank: #15685 (+212)
24M → 40K
6:35 | 7:42/mi
25.2M
3:24:09
25.20 mi
Rank: #15586 (+99)
40K → 25.2M
2:48 | 8:08/mi
FINISH
3:31:03
26.22 mi
Rank: #15234 (+352)
25.2M → FINISH
6:54 | 6:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:46:29
Pace8:08 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:34
Pace7:59 /mi
📊Negative Split: 1.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:3925:358:1525:35
8:15
-
10K
6.21 mi11:32:4250:388:0925:03
8:04
-0:11
15K
9.32 mi11:57:291:15:258:0624:47
7:59
-0:05
20K
12.43 mi12:22:591:40:558:0825:30
8:13
+0:14
HALF
13.11 mi12:28:331:46:298:085:34
8:10
-0:03
25K
15.53 mi12:49:012:06:578:1120:28
8:27
+0:17
30K
18.64 mi13:15:142:33:108:1326:13
8:27
0:00
20M
20.00 mi13:26:062:44:028:1310:52
8:01
-0:26
21M
21.00 mi13:34:242:52:208:138:18
8:18
+0:17
35K
21.75 mi13:39:592:57:558:115:35
7:28
-0:50
23M
23.00 mi13:49:203:07:168:099:21
7:29
+0:01
24M
24.00 mi13:56:503:14:468:077:30
7:30
+0:01
40K
24.85 mi14:03:253:21:218:076:35
7:42
+0:12
25.2M
25.20 mi14:06:133:24:098:072:48
8:08
+0:26
FINISH
26.22 mi14:13:073:31:038:046:54
6:47
-1:21

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

6:47 /mi

Average Pace

8:03 /mi

Slowest Pace

8:27 /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

35:55

17% of race

Time at Steady Pace

2:00:09

57% of race

Time at Slower Pace

54:59

26% of race

Average Pace: 8:03 /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 mi11:07:3925:358:1525:35
8:15
#18435
10K
6.21 mi11:32:4250:388:0925:03
8:04
#18086
15K
9.32 mi11:57:291:15:258:0624:47
7:59
#17708
20K
12.43 mi12:22:591:40:558:0825:30
8:13
#17654
HALF
13.11 mi12:28:331:46:298:085:34
8:10
#17687
25K
15.53 mi12:49:012:06:578:1120:28
8:27
#17758
30K
18.64 mi13:15:142:33:108:1326:13
8:27
#17490
20M
20.00 mi13:26:062:44:028:1310:52
8:01
#17151
21M
21.00 mi13:34:242:52:208:138:18
8:18
#16845
35K
21.75 mi13:39:592:57:558:115:35
7:28
#16607
23M
23.00 mi13:49:203:07:168:099:21
7:29
#16138
24M
24.00 mi13:56:503:14:468:077:30
7:30
#15897
40K
24.85 mi14:03:253:21:218:076:35
7:42
#15685
25.2M
25.20 mi14:06:133:24:098:072:48
8:08
#15586
FINISH
26.22 mi14:13:073:31:038:046:54
6:47
#15234
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 mi184356756675616843(Top 58%)5806(Top 46%)5806(Top 325%)
10K6.21 mi3.10 mi18086+3496545+2116545+21117717(Top 61%)6328(Top 50%)6328(Top 354%)
15K9.32 mi3.11 mi17708+3786329+2166329+21616843(Top 58%)5806(Top 46%)5806(Top 325%)
20K12.43 mi3.11 mi17654+546303+266303+2617531(Top 60%)6237(Top 50%)6237(Top 349%)
HALF13.11 mi0.68 mi17687-336320-176320-1718205(Top 63%)6578(Top 52%)6578(Top 368%)
25K15.53 mi2.42 mi17758-716360-406360-4018212(Top 63%)6689(Top 53%)6689(Top 375%)
30K18.64 mi3.11 mi17490+2686230+1306230+13016500(Top 57%)5810(Top 46%)5810(Top 325%)
20M20.00 mi1.36 mi17151+3396061+1696061+16912882(Top 44%)3886(Top 31%)3886(Top 218%)
21M21.00 mi1.00 mi16845+3065908+1535908+15311912(Top 41%)3493(Top 28%)3493(Top 196%)
35K21.75 mi0.75 mi16607+2385787+1215787+12110651(Top 37%)2848(Top 23%)2848(Top 159%)
23M23.00 mi1.25 mi16138+4695561+2265561+2268693(Top 30%)1979(Top 16%)1979(Top 111%)
24M24.00 mi1.00 mi15897+2415438+1235438+12310159(Top 35%)2765(Top 22%)2765(Top 155%)
40K24.85 mi0.85 mi15685+2125335+1035335+10310389(Top 36%)2963(Top 24%)2963(Top 166%)
25.2M25.20 mi0.35 mi15586+995291+445291+449234(Top 32%)2497(Top 20%)2497(Top 140%)
FINISH26.22 mi1.02 mi15234+3525087+2045087+2045958(Top 21%)1117(Top 9%)1117(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16843

Females

5806

F45-49

5806

5K→10K

3.1 - 6.2 mi

Top 61%
×5
+79ft-138ft

Overall

17717

Females

6328

F45-49

6328

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16843

Females

5806

F45-49

5806

15K→20K

9.3 - 12.4 mi

Top 60%
×5
+106ft-86ft

Overall

17531

Females

6237

F45-49

6237

20K→HALF

12.4 - 13.1 mi

Top 63%
×2
+19ft-37ft

Overall

18205

Females

6578

F45-49

6578

HALF→25K

13.1 - 15.5 mi

Top 63%
×4
+66ft-88ft

Overall

18212

Females

6689

F45-49

6689

25K→30K

15.5 - 18.6 mi

Top 57%
×9
+181ft-148ft

Overall

16500

Females

5810

F45-49

5810

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12882

Females

3886

F45-49

3886

20M→21M

20.0 - 21.0 mi

Top 41%
×8
+106ft-24ft

Overall

11912

Females

3493

F45-49

3493

21M→35K

21.0 - 21.8 mi

Top 37%
×7
+17ft-86ft

Overall

10651

Females

2848

F45-49

2848

35K→23M

21.8 - 23.0 mi

Top 30%
×5
+23ft-63ft

Overall

8693

Females

1979

F45-49

1979

23M→24M

23.0 - 24.0 mi

Top 35%
×6
+12ft-82ft

Overall

10159

Females

2765

F45-49

2765

24M→40K

24.0 - 24.9 mi

Top 36%
×1
+6ft-20ft

Overall

10389

Females

2963

F45-49

2963

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1
+13ft-16ft

Overall

9234

Females

2497

F45-49

2497

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2
+22ft-21ft

Overall

5958

Females

1117

F45-49

1117

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3835*
Passed By
634
Net Change
+3201
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18435
5K → 10K504*155+349#18435#18086
10K → 15K417*39+378#18086#17708
15K → 20K200146+54#17708#17654
20K → HALF2457-33#17654#17687
HALF → 25K97168-71#17687#17758
25K → 30K327*59+268#17758#17490
30K → 20M339*0+339#17490#17151
20M → 21M309*3+306#17151#16845
21M → 35K239*1+238#16845#16607
35K → 23M470*1+469#16607#16138
23M → 24M243*2+241#16138#15897
24M → 40K214*2+212#15897#15685
40K → 25.2M990+99#15685#15586
25.2M → FINISH353*1+352#15586#15234
TOTALS3835*634+3201

* 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

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OTQ

Olympic Trials Qualifying analysis available

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