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BOSTON MARATHON 2026

Kerith Mothersead

Bib: 25040•F

IN

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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 (F55-59)
#0 / 951
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
28:29
3.11 mi
Rank: #23365
Start → 5K
28:29 | 9:11/mi
10K
56:22
6.21 mi
Rank: #23040 (+325)
5K → 10K
27:53 | 8:59/mi
15K
1:23:51
9.32 mi
Rank: #22723 (+317)
10K → 15K
27:29 | 8:51/mi
20K
1:51:13
12.43 mi
Rank: #22253 (+470)
15K → 20K
27:22 | 8:49/mi
HALF
1:57:13
13.11 mi
Rank: #22220 (+33)
20K → HALF
6:00 | 8:49/mi
25K
2:20:26
15.53 mi
Rank: #22439 (-219)
HALF → 25K
23:13 | 9:35/mi
30K
2:50:18
18.64 mi
Rank: #22360 (+79)
25K → 30K
29:52 | 9:37/mi
20M
3:03:46
20.00 mi
Rank: #22363 (-3)
30K → 20M
13:28 | 9:55/mi
21M
3:14:27
21.00 mi
Rank: #22388 (-25)
20M → 21M
10:41 | 10:41/mi
35K
3:22:57
21.75 mi
Rank: #22586 (-198)
21M → 35K
8:30 | 11:22/mi
23M
3:35:30
23.00 mi
Rank: #22542 (+44)
35K → 23M
12:33 | 10:02/mi
24M
3:45:17
24.00 mi
Rank: #22533 (+9)
23M → 24M
9:47 | 9:47/mi
40K
3:53:45
24.85 mi
Rank: #22478 (+55)
24M → 40K
8:28 | 9:55/mi
25.2M
3:57:41
25.20 mi
Rank: #22501 (-23)
40K → 25.2M
3:56 | 11:25/mi
FINISH
4:06:49
26.22 mi
Rank: #22422 (+79)
25.2M → FINISH
9:08 | 8:58/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:57:13
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:09:36
Pace9:54 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:36:5028:299:1128:29
9:11
-
10K
6.21 mi12:04:4356:229:0527:53
8:59
-0:12
15K
9.32 mi12:32:121:23:519:0027:29
8:51
-0:08
20K
12.43 mi12:59:341:51:138:5727:22
8:49
-0:02
HALF
13.11 mi13:05:341:57:138:576:00
8:49
0:00
25K
15.53 mi13:28:472:20:269:0323:13
9:35
+0:46
30K
18.64 mi13:58:392:50:189:0929:52
9:37
+0:02
20M
20.00 mi14:12:073:03:469:1213:28
9:55
+0:18
21M
21.00 mi14:22:483:14:279:1610:41
10:41
+0:46
35K
21.75 mi14:31:183:22:579:208:30
11:22
+0:41
23M
23.00 mi14:43:513:35:309:2312:33
10:02
-1:20
24M
24.00 mi14:53:383:45:179:249:47
9:47
-0:15
40K
24.85 mi15:02:063:53:459:258:28
9:55
+0:08
25.2M
25.20 mi15:06:023:57:419:263:56
11:25
+1:30
FINISH
26.22 mi15:15:104:06:499:269:08
8:58
-2:27

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

8:49 /mi

Average Pace

9:25 /mi

Slowest Pace

11:25 /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

2:06:21

51% of race

Time at Steady Pace

1:37:21

39% of race

Time at Slower Pace

23:07

9% of race

Average Pace: 9:25 /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 mi11:36:5028:299:1128:29
9:11
#23365
10K
6.21 mi12:04:4356:229:0527:53
8:59
#23040
15K
9.32 mi12:32:121:23:519:0027:29
8:51
#22723
20K
12.43 mi12:59:341:51:138:5727:22
8:49
#22253
HALF
13.11 mi13:05:341:57:138:576:00
8:49
#22220
25K
15.53 mi13:28:472:20:269:0323:13
9:35
#22439
30K
18.64 mi13:58:392:50:189:0929:52
9:37
#22360
20M
20.00 mi14:12:073:03:469:1213:28
9:55
#22363
21M
21.00 mi14:22:483:14:279:1610:41
10:41
#22388
35K
21.75 mi14:31:183:22:579:208:30
11:22
#22586
23M
23.00 mi14:43:513:35:309:2312:33
10:02
#22542
24M
24.00 mi14:53:383:45:179:249:47
9:47
#22533
40K
24.85 mi15:02:063:53:459:258:28
9:55
#22478
25.2M
25.20 mi15:06:023:57:419:263:56
11:25
#22501
FINISH
26.22 mi15:15:104:06:499:269:08
8:58
#22422
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi233659353935321976(Top 76%)8633(Top 69%)8633(Top 908%)
10K6.21 mi3.10 mi23040+3259189+1649189+16422731(Top 78%)9007(Top 72%)9007(Top 947%)
15K9.32 mi3.11 mi22723+3179016+1739016+17321976(Top 76%)8633(Top 69%)8633(Top 908%)
20K12.43 mi3.11 mi22253+4708779+2378779+23721034(Top 72%)8156(Top 65%)8156(Top 858%)
HALF13.11 mi0.68 mi22220+338766+138766+1321884(Top 75%)8585(Top 68%)8585(Top 903%)
25K15.53 mi2.42 mi22439-2198874-1088874-10823231(Top 80%)9317(Top 74%)9317(Top 980%)
30K18.64 mi3.11 mi22360+798869+58869+521999(Top 76%)8764(Top 70%)8764(Top 922%)
20M20.00 mi1.36 mi22363-38884-158884-1522345(Top 77%)9035(Top 72%)9035(Top 950%)
21M21.00 mi1.00 mi22388-258906-228906-2222398(Top 77%)9096(Top 72%)9096(Top 956%)
35K21.75 mi0.75 mi22586-1989028-1229028-12225850(Top 89%)10955(Top 87%)10955(Top 1152%)
23M23.00 mi1.25 mi22542+449026+29026+222229(Top 77%)9121(Top 73%)9121(Top 959%)
24M24.00 mi1.00 mi22533+99038-129038-1222212(Top 77%)9149(Top 73%)9149(Top 962%)
40K24.85 mi0.85 mi22478+559029+99029+921682(Top 75%)8943(Top 71%)8943(Top 940%)
25.2M25.20 mi0.35 mi22501-239048-199048-1923324(Top 80%)9785(Top 78%)9785(Top 1029%)
FINISH26.22 mi1.02 mi22422+799013+359013+3520394(Top 70%)8287(Top 66%)8287(Top 871%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

21976

Females

8633

F55-59

8633

5K→10K

3.1 - 6.2 mi

Top 78%
×5
+79ft-138ft

Overall

22731

Females

9007

F55-59

9007

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

21976

Females

8633

F55-59

8633

15K→20K

9.3 - 12.4 mi

Top 72%
×5
+106ft-86ft

Overall

21034

Females

8156

F55-59

8156

20K→HALF

12.4 - 13.1 mi

Top 75%
×2
+19ft-37ft

Overall

21884

Females

8585

F55-59

8585

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23231

Females

9317

F55-59

9317

25K→30K

15.5 - 18.6 mi

Top 76%
×9
+181ft-148ft

Overall

21999

Females

8764

F55-59

8764

30K→20M

18.6 - 20.0 mi

Top 77%
×5
+64ft-50ft

Overall

22345

Females

9035

F55-59

9035

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22398

Females

9096

F55-59

9096

21M→35K

21.0 - 21.8 mi

Top 89%
×7
+17ft-86ft

Overall

25850

Females

10955

F55-59

10955

35K→23M

21.8 - 23.0 mi

Top 77%
×5
+23ft-63ft

Overall

22229

Females

9121

F55-59

9121

23M→24M

23.0 - 24.0 mi

Top 77%
×6
+12ft-82ft

Overall

22212

Females

9149

F55-59

9149

24M→40K

24.0 - 24.9 mi

Top 75%
×1
+6ft-20ft

Overall

21682

Females

8943

F55-59

8943

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23324

Females

9785

F55-59

9785

25.2M→FINISH

25.2 - 26.2 mi

Top 70%
×2
+22ft-21ft

Overall

20394

Females

8287

F55-59

8287

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2107
Passed By
1164
Net Change
+943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23365
5K → 10K451126+325#23365#23040
10K → 15K37053+317#23040#22723
15K → 20K48212+470#22723#22253
20K → HALF429+33#22253#22220
HALF → 25K66285-219#22220#22439
25K → 30K213134+79#22439#22360
30K → 20M8083-3#22360#22363
20M → 21M6489-25#22363#22388
21M → 35K11209-198#22388#22586
35K → 23M9551+44#22586#22542
23M → 24M5748+9#22542#22533
24M → 40K7621+55#22533#22478
40K → 25.2M1134-23#22478#22501
25.2M → FINISH8910+79#22501#22422
TOTALS21071164+943

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📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing