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BOSTON MARATHON 2025

Amy Kotter

Bib: 20405•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:49
Rank: #20664
Start → 5K
26:49 | 8:38/mi
10K· 6.21 mi
53:54
Rank: #20776 (-112)
5K → 10K
27:05 | 8:43/mi
15K· 9.32 mi
1:21:01
Rank: #20719 (+57)
10K → 15K
27:07 | 8:44/mi
20K· 12.43 mi
1:48:09
Rank: #20444 (+275)
15K → 20K
27:08 | 8:44/mi
Half· 13.11 mi
1:53:57
Rank: #20367 (+77)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:15:56
Rank: #20363 (+4)
Half → 25K
21:59 | 9:04/mi
30K· 18.64 mi
2:48:02
Rank: #20938 (-575)
25K → 30K
32:06 | 10:20/mi
20M
3:01:10
Rank: #20841 (+97)
30K → 20M
13:08 | 9:40/mi
21M
3:11:27
Rank: #20715 (+126)
20M → 21M
10:17 | 10:17/mi
35K· 21.75 mi
3:18:41
Rank: #20737 (-22)
21M → 35K
7:14 | 9:40/mi
23M
3:30:41
Rank: #20644 (+93)
35K → 23M
12:00 | 9:35/mi
24M
3:40:15
Rank: #20626 (+18)
23M → 24M
9:34 | 9:34/mi
40K· 24.85 mi
3:48:14
Rank: #20547 (+79)
24M → 40K
7:59 | 9:20/mi
25.2M
3:51:44
Rank: #20516 (+31)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
4:00:42
Rank: #20458 (+58)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:57
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time2:06:45
Pace9:40 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3726:498:3826:49
8:38
-
10K
6.21 mi11:47:4253:548:4027:05
8:43
+0:05
15K
9.32 mi12:14:491:21:018:4227:07
8:44
+0:01
20K
12.43 mi12:41:571:48:098:4227:08
8:44
0:00
Half
13.11 mi12:47:451:53:578:425:48
8:30
-0:14
25K
15.53 mi13:09:442:15:568:4521:59
9:04
+0:34
30K
18.64 mi13:41:502:48:029:0132:06
10:20
+1:16
20M
20.00 mi13:54:583:01:109:0313:08
9:40
-0:40
21M
21.00 mi14:05:153:11:279:0710:17
10:17
+0:37
35K
21.75 mi14:12:293:18:419:087:14
9:40
-0:37
23M
23.00 mi14:24:293:30:419:1012:00
9:35
-0:05
24M
24.00 mi14:34:033:40:159:119:34
9:34
-0:01
40K
24.85 mi14:42:023:48:149:117:59
9:20
-0:14
25.2M
25.20 mi14:45:323:51:449:123:30
10:09
+0:49
Finish
26.22 mi14:54:304:00:429:118:58
8:48
-1:21

Checkpoints & Pacing

📈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

8:30 /mi

Average Pace

9:11 /mi

Slowest Pace

10:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:55

51% of race

Time at Steady Pace

51:32

21% of race

Time at Slower Pace

1:06:15

28% of race

Average Pace: 9:11 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:20:3726:498:3826:49
8:38
#20664
10K
6.21 mi11:47:4253:548:4027:05
8:43
#20776
15K
9.32 mi12:14:491:21:018:4227:07
8:44
#20719
20K
12.43 mi12:41:571:48:098:4227:08
8:44
#20444
Half
13.11 mi12:47:451:53:578:425:48
8:30
#20367
25K
15.53 mi13:09:442:15:568:4521:59
9:04
#20363
30K
18.64 mi13:41:502:48:029:0132:06
10:20
#20938
20M
20.00 mi13:54:583:01:109:0313:08
9:40
#20841
21M
21.00 mi14:05:153:11:279:0710:17
10:17
#20715
35K
21.75 mi14:12:293:18:419:087:14
9:40
#20737
23M
23.00 mi14:24:293:30:419:1012:00
9:35
#20644
24M
24.00 mi14:34:033:40:159:119:34
9:34
#20626
40K
24.85 mi14:42:023:48:149:117:59
9:20
#20547
25.2M
25.20 mi14:45:323:51:449:123:30
10:09
#20516
Finish
26.22 mi14:54:304:00:429:118:58
8:48
#20458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi206647893789320653(Top 73%)7808(Top 64%)7808(Top 454%)
10K6.21 mi3.10 mi20776-1127927-347927-3420978(Top 74%)8008(Top 65%)8008(Top 466%)
15K9.32 mi3.11 mi20719+577875+527875+5220653(Top 73%)7808(Top 64%)7808(Top 454%)
20K12.43 mi3.11 mi20444+2757729+1467729+14619606(Top 69%)7270(Top 59%)7270(Top 423%)
Half13.11 mi0.68 mi20367+777684+457684+4519287(Top 68%)7078(Top 58%)7078(Top 412%)
25K15.53 mi2.42 mi20363+47695-117695-1120220(Top 71%)7659(Top 63%)7659(Top 446%)
30K18.64 mi3.11 mi20938-5758055-3608055-36022548(Top 79%)9073(Top 74%)9073(Top 528%)
20M20.00 mi1.36 mi20841+978017+388017+3819834(Top 70%)7692(Top 63%)7692(Top 448%)
21M21.00 mi1.00 mi20715+1267966+517966+5119322(Top 68%)7509(Top 61%)7509(Top 437%)
35K21.75 mi0.75 mi20737-227993-277993-2720914(Top 74%)8457(Top 69%)8457(Top 492%)
23M23.00 mi1.25 mi20644+937965+287965+2819043(Top 67%)7537(Top 62%)7537(Top 439%)
24M24.00 mi1.00 mi20626+187976-117976-1119873(Top 70%)8017(Top 66%)8017(Top 467%)
40K24.85 mi0.85 mi20547+797949+277949+2718050(Top 64%)7154(Top 59%)7154(Top 416%)
25.2M25.20 mi0.35 mi20516+317937+127937+1217766(Top 63%)7018(Top 57%)7018(Top 408%)
Finish26.22 mi1.02 mi20458+587921+167921+1618078(Top 64%)7135(Top 58%)7135(Top 415%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20653

Females

7808

F40-44

7808

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

20978

Females

8008

F40-44

8008

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20653

Females

7808

F40-44

7808

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19606

Females

7270

F40-44

7270

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19287

Females

7078

F40-44

7078

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20220

Females

7659

F40-44

7659

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22548

Females

9073

F40-44

9073

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19834

Females

7692

F40-44

7692

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19322

Females

7509

F40-44

7509

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

20914

Females

8457

F40-44

8457

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

19043

Females

7537

F40-44

7537

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19873

Females

8017

F40-44

8017

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18050

Females

7154

F40-44

7154

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17766

Females

7018

F40-44

7018

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18078

Females

7135

F40-44

7135

Passing Analysis

Category:
Athletes Passed
1900
Passed By
1694
Net Change
+206
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20664
5K → 10K232344-112#20664#20776
10K → 15K218161+57#20776#20719
15K → 20K33257+275#20719#20444
20K → Half858+77#20444#20367
Half → 25K161157+4#20367#20363
25K → 30K80655-575#20363#20938
30K → 20M15457+97#20938#20841
20M → 21M16236+126#20841#20715
21M → 35K4668-22#20715#20737
35K → 23M13542+93#20737#20644
23M → 24M7153+18#20644#20626
24M → 40K9718+79#20626#20547
40K → 25.2M4413+31#20547#20516
25.2M → Finish8325+58#20516#20458
TOTALS19001694+206
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing