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BOSTON MARATHON 2025

Robin Kantor

Bib: 29482•F

FL

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
37:31
Rank: #28250
Start → 5K
37:31 | 12:05/mi
10K· 6.21 mi
1:16:32
Rank: #28247 (+3)
5K → 10K
39:01 | 12:33/mi
15K· 9.32 mi
1:56:20
Rank: #28227 (+20)
10K → 15K
39:48 | 12:49/mi
20K· 12.43 mi
2:35:27
Rank: #28108 (+119)
15K → 20K
39:07 | 12:35/mi
Half· 13.11 mi
2:43:47
Rank: #28089 (+19)
20K → Half
8:20 | 12:13/mi
25K· 15.53 mi
3:15:25
Rank: #27998 (+91)
Half → 25K
31:38 | 13:03/mi
30K· 18.64 mi
3:56:07
Rank: #27849 (+149)
25K → 30K
40:42 | 13:06/mi
20M
4:13:51
Rank: #27772 (+77)
30K → 20M
17:44 | 13:03/mi
21M
4:26:38
Rank: #27667 (+105)
20M → 21M
12:47 | 12:47/mi
35K· 21.75 mi
4:35:27
Rank: #27621 (+46)
21M → 35K
8:49 | 11:47/mi
23M
4:50:50
Rank: #27543 (+78)
35K → 23M
15:23 | 12:17/mi
24M
5:02:47
Rank: #27502 (+41)
23M → 24M
11:57 | 11:57/mi
40K· 24.85 mi
5:13:16
Rank: #27459 (+43)
24M → 40K
10:29 | 12:16/mi
25.2M
5:17:38
Rank: #27435 (+24)
40K → 25.2M
4:22 | 12:40/mi
Finish· 26.22 mi
5:29:16
Rank: #27401 (+34)
25.2M → Finish
11:38 | 11:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:47
Pace12:30 /mi
2nd Half
Distance13.11 mi
Time2:45:29
Pace12:37 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3437:3112:0537:31
12:05
-
10K
6.21 mi12:35:351:16:3212:1939:01
12:33
+0:28
15K
9.32 mi13:15:231:56:2012:2939:48
12:49
+0:16
20K
12.43 mi13:54:302:35:2712:3139:07
12:35
-0:14
Half
13.11 mi14:02:502:43:4712:308:20
12:13
-0:22
25K
15.53 mi14:34:283:15:2512:3531:38
13:03
+0:50
30K
18.64 mi15:15:103:56:0712:4040:42
13:06
+0:03
20M
20.00 mi15:32:544:13:5112:4217:44
13:03
-0:03
21M
21.00 mi15:45:414:26:3812:4212:47
12:47
-0:16
35K
21.75 mi15:54:304:35:2712:408:49
11:47
-1:00
23M
23.00 mi16:09:534:50:5012:3915:23
12:17
+0:30
24M
24.00 mi16:21:505:02:4712:3711:57
11:57
-0:20
40K
24.85 mi16:32:195:13:1612:3610:29
12:16
+0:19
25.2M
25.20 mi16:36:415:17:3812:364:22
12:40
+0:24
Finish
26.22 mi16:48:195:29:1612:3411:38
11:25
-1:15

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

11:25 /mi

Average Pace

12:34 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:08

43% of race

Time at Steady Pace

3:06:08

57% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:33 /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 mi11:56:3437:3112:0537:31
12:05
#28250
10K
6.21 mi12:35:351:16:3212:1939:01
12:33
#28247
15K
9.32 mi13:15:231:56:2012:2939:48
12:49
#28227
20K
12.43 mi13:54:302:35:2712:3139:07
12:35
#28108
Half
13.11 mi14:02:502:43:4712:308:20
12:13
#28089
25K
15.53 mi14:34:283:15:2512:3531:38
13:03
#27998
30K
18.64 mi15:15:103:56:0712:4040:42
13:06
#27849
20M
20.00 mi15:32:544:13:5112:4217:44
13:03
#27772
21M
21.00 mi15:45:414:26:3812:4212:47
12:47
#27667
35K
21.75 mi15:54:304:35:2712:408:49
11:47
#27621
23M
23.00 mi16:09:534:50:5012:3915:23
12:17
#27543
24M
24.00 mi16:21:505:02:4712:3711:57
11:57
#27502
40K
24.85 mi16:32:195:13:1612:3610:29
12:16
#27459
25.2M
25.20 mi16:36:415:17:3812:364:22
12:40
#27435
Finish
26.22 mi16:48:195:29:1612:3411:38
11:25
#27401
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi28250121241212428090(Top 99%)12035(Top 98%)12035(Top 701%)
10K6.21 mi3.10 mi28247+312128-412128-428214(Top 99%)12110(Top 99%)12110(Top 705%)
15K9.32 mi3.11 mi28227+2012117+1112117+1128090(Top 99%)12035(Top 98%)12035(Top 701%)
20K12.43 mi3.11 mi28108+11912043+7412043+7427578(Top 97%)11743(Top 96%)11743(Top 684%)
Half13.11 mi0.68 mi28089+1912035+812035+827592(Top 97%)11765(Top 96%)11765(Top 685%)
25K15.53 mi2.42 mi27998+9111980+5511980+5527328(Top 96%)11606(Top 95%)11606(Top 676%)
30K18.64 mi3.11 mi27849+14911893+8711893+8726778(Top 94%)11373(Top 93%)11373(Top 662%)
20M20.00 mi1.36 mi27772+7711860+3311860+3326489(Top 93%)11280(Top 92%)11280(Top 657%)
21M21.00 mi1.00 mi27667+10511807+5311807+5324768(Top 87%)10452(Top 85%)10452(Top 608%)
35K21.75 mi0.75 mi27621+4611787+2011787+2025539(Top 90%)10873(Top 89%)10873(Top 633%)
23M23.00 mi1.25 mi27543+7811746+4111746+4125519(Top 90%)10868(Top 89%)10868(Top 633%)
24M24.00 mi1.00 mi27502+4111728+1811728+1825608(Top 90%)10943(Top 89%)10943(Top 637%)
40K24.85 mi0.85 mi27459+4311702+2611702+2625317(Top 89%)10831(Top 89%)10831(Top 630%)
25.2M25.20 mi0.35 mi27435+2411692+1011692+1024458(Top 86%)10416(Top 85%)10416(Top 606%)
Finish26.22 mi1.02 mi27401+3411671+2111671+2126012(Top 92%)11154(Top 91%)11154(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

28090

Females

12035

F40-44

12035

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

28214

Females

12110

F40-44

12110

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

28090

Females

12035

F40-44

12035

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

27578

Females

11743

F40-44

11743

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27592

Females

11765

F40-44

11765

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27328

Females

11606

F40-44

11606

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26778

Females

11373

F40-44

11373

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26489

Females

11280

F40-44

11280

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24768

Females

10452

F40-44

10452

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

25539

Females

10873

F40-44

10873

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25519

Females

10868

F40-44

10868

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

25608

Females

10943

F40-44

10943

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25317

Females

10831

F40-44

10831

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24458

Females

10416

F40-44

10416

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

26012

Females

11154

F40-44

11154

Passing Analysis

Category:
Athletes Passed
930
Passed By
81
Net Change
+849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28250
5K → 10K3229+3#28250#28247
10K → 15K3515+20#28247#28227
15K → 20K1212+119#28227#28108
20K → Half234+19#28108#28089
Half → 25K987+91#28089#27998
25K → 30K1534+149#27998#27849
30K → 20M792+77#27849#27772
20M → 21M1061+105#27772#27667
21M → 35K504+46#27667#27621
35K → 23M780+78#27621#27543
23M → 24M443+41#27543#27502
24M → 40K463+43#27502#27459
40K → 25.2M240+24#27459#27435
25.2M → Finish417+34#27435#27401
TOTALS93081+849
📊

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