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BOSTON MARATHON 2025

Karin Stoop

Bib: 31172•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:25
Rank: #25859
Start → 5K
31:25 | 10:07/mi
10K· 6.21 mi
1:01:30
Rank: #25180 (+679)
5K → 10K
30:05 | 9:41/mi
15K· 9.32 mi
1:33:22
Rank: #25330 (-150)
10K → 15K
31:52 | 10:15/mi
20K· 12.43 mi
2:04:59
Rank: #25154 (+176)
15K → 20K
31:37 | 10:11/mi
Half· 13.11 mi
2:11:46
Rank: #25117 (+37)
20K → Half
6:47 | 9:57/mi
25K· 15.53 mi
2:37:34
Rank: #25014 (+103)
Half → 25K
25:48 | 10:38/mi
30K· 18.64 mi
3:11:55
Rank: #24859 (+155)
25K → 30K
34:21 | 11:03/mi
20M
3:27:19
Rank: #24814 (+45)
30K → 20M
15:24 | 11:20/mi
21M
3:39:45
Rank: #24791 (+23)
20M → 21M
12:26 | 12:26/mi
35K· 21.75 mi
3:47:25
Rank: #24728 (+63)
21M → 35K
7:40 | 10:15/mi
23M
4:01:24
Rank: #24681 (+47)
35K → 23M
13:59 | 11:10/mi
24M
4:12:11
Rank: #24630 (+51)
23M → 24M
10:47 | 10:47/mi
40K· 24.85 mi
4:21:48
Rank: #24603 (+27)
24M → 40K
9:37 | 11:15/mi
25.2M
4:26:12
Rank: #24617 (-14)
40K → 25.2M
4:24 | 12:46/mi
Finish· 26.22 mi
4:36:28
Rank: #24569 (+48)
25.2M → Finish
10:16 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:46
Pace10:03 /mi
2nd Half
Distance13.11 mi
Time2:24:42
Pace11:02 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3331:2510:0731:25
10:07
-
10K
6.21 mi12:26:381:01:309:5430:05
9:41
-0:26
15K
9.32 mi12:58:301:33:2210:0131:52
10:15
+0:34
20K
12.43 mi13:30:072:04:5910:0331:37
10:11
-0:04
Half
13.11 mi13:36:542:11:4610:036:47
9:57
-0:14
25K
15.53 mi14:02:422:37:3410:0925:48
10:38
+0:41
30K
18.64 mi14:37:033:11:5510:1834:21
11:03
+0:25
20M
20.00 mi14:52:273:27:1910:2215:24
11:20
+0:17
21M
21.00 mi15:04:533:39:4510:2812:26
12:26
+1:06
35K
21.75 mi15:12:333:47:2510:277:40
10:15
-2:11
23M
23.00 mi15:26:324:01:2410:3013:59
11:10
+0:55
24M
24.00 mi15:37:194:12:1110:3010:47
10:47
-0:23
40K
24.85 mi15:46:564:21:4810:329:37
11:15
+0:28
25.2M
25.20 mi15:51:204:26:1210:344:24
12:46
+1:31
Finish
26.22 mi16:01:364:36:2810:3310:16
10:04
-2:42

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

9:41 /mi

Average Pace

10:33 /mi

Slowest Pace

12:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:10

40% of race

Time at Steady Pace

1:50:28

40% of race

Time at Slower Pace

55:50

20% of race

Average Pace: 10:33 /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 mi11:56:3331:2510:0731:25
10:07
#25859
10K
6.21 mi12:26:381:01:309:5430:05
9:41
#25180
15K
9.32 mi12:58:301:33:2210:0131:52
10:15
#25330
20K
12.43 mi13:30:072:04:5910:0331:37
10:11
#25154
Half
13.11 mi13:36:542:11:4610:036:47
9:57
#25117
25K
15.53 mi14:02:422:37:3410:0925:48
10:38
#25014
30K
18.64 mi14:37:033:11:5510:1834:21
11:03
#24859
20M
20.00 mi14:52:273:27:1910:2215:24
11:20
#24814
21M
21.00 mi15:04:533:39:4510:2812:26
12:26
#24791
35K
21.75 mi15:12:333:47:2510:277:40
10:15
#24728
23M
23.00 mi15:26:324:01:2410:3013:59
11:10
#24681
24M
24.00 mi15:37:194:12:1110:3010:47
10:47
#24630
40K
24.85 mi15:46:564:21:4810:329:37
11:15
#24603
25.2M
25.20 mi15:51:204:26:1210:344:24
12:46
#24617
Finish
26.22 mi16:01:364:36:2810:3310:16
10:04
#24569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi25859106811068125525(Top 90%)10518(Top 86%)10518(Top 807%)
10K6.21 mi3.10 mi25180+67910327+35410327+35424579(Top 87%)10004(Top 82%)10004(Top 768%)
15K9.32 mi3.11 mi25330-15010404-7710404-7725525(Top 90%)10518(Top 86%)10518(Top 807%)
20K12.43 mi3.11 mi25154+17610320+8410320+8424593(Top 87%)10045(Top 82%)10045(Top 771%)
Half13.11 mi0.68 mi25117+3710298+2210298+2224731(Top 87%)10128(Top 83%)10128(Top 777%)
25K15.53 mi2.42 mi25014+10310255+4310255+4324621(Top 87%)10089(Top 83%)10089(Top 774%)
30K18.64 mi3.11 mi24859+15510197+5810197+5824100(Top 85%)9919(Top 81%)9919(Top 761%)
20M20.00 mi1.36 mi24814+4510191+610191+624254(Top 85%)10090(Top 83%)10090(Top 774%)
21M21.00 mi1.00 mi24791+2310185+610185+624319(Top 86%)10194(Top 83%)10194(Top 782%)
35K21.75 mi0.75 mi24728+6310162+2310162+2322588(Top 80%)9336(Top 76%)9336(Top 717%)
23M23.00 mi1.25 mi24681+4710160+210160+223617(Top 83%)9912(Top 81%)9912(Top 761%)
24M24.00 mi1.00 mi24630+5110147+1310147+1323538(Top 83%)9895(Top 81%)9895(Top 759%)
40K24.85 mi0.85 mi24603+2710140+710140+723676(Top 83%)10017(Top 82%)10017(Top 769%)
25.2M25.20 mi0.35 mi24617-1410153-1310153-1324701(Top 87%)10519(Top 86%)10519(Top 807%)
Finish26.22 mi1.02 mi24569+4810134+1910134+1923169(Top 82%)9756(Top 80%)9756(Top 749%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

25525

Females

10518

F50-54

10518

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24579

Females

10004

F50-54

10004

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

25525

Females

10518

F50-54

10518

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24593

Females

10045

F50-54

10045

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24731

Females

10128

F50-54

10128

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

24621

Females

10089

F50-54

10089

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

24100

Females

9919

F50-54

9919

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24254

Females

10090

F50-54

10090

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24319

Females

10194

F50-54

10194

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22588

Females

9336

F50-54

9336

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

23617

Females

9912

F50-54

9912

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23538

Females

9895

F50-54

9895

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23676

Females

10017

F50-54

10017

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24701

Females

10519

F50-54

10519

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23169

Females

9756

F50-54

9756

Passing Analysis

Category:
Athletes Passed
1869
Passed By
579
Net Change
+1290
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25859
5K → 10K69213+679#25859#25180
10K → 15K97247-150#25180#25330
15K → 20K22044+176#25330#25154
20K → Half458+37#25154#25117
Half → 25K15653+103#25117#25014
25K → 30K20651+155#25014#24859
30K → 20M7732+45#24859#24814
20M → 21M5936+23#24814#24791
21M → 35K652+63#24791#24728
35K → 23M7528+47#24728#24681
23M → 24M6110+51#24681#24630
24M → 40K4720+27#24630#24603
40K → 25.2M1327-14#24603#24617
25.2M → Finish568+48#24617#24569
TOTALS1869579+1290
📊

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