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BOSTON MARATHON 2025

Petra Grobbecker

Bib: 29077•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:03
Rank: #25551
Start → 5K
31:03 | 10:00/mi
10K· 6.21 mi
1:02:36
Rank: #25597 (-46)
5K → 10K
31:33 | 10:09/mi
15K· 9.32 mi
1:36:20
Rank: #25973 (-376)
10K → 15K
33:44 | 10:51/mi
20K· 12.43 mi
2:10:49
Rank: #26022 (-49)
15K → 20K
34:29 | 11:06/mi
Half· 13.11 mi
2:18:47
Rank: #26119 (-97)
20K → Half
7:58 | 11:41/mi
25K· 15.53 mi
2:46:49
Rank: #26102 (+17)
Half → 25K
28:02 | 11:34/mi
30K· 18.64 mi
3:25:08
Rank: #26079 (+23)
25K → 30K
38:19 | 12:20/mi
20M
3:44:07
Rank: #26222 (-143)
30K → 20M
18:59 | 13:58/mi
21M
3:57:45
Rank: #26231 (-9)
20M → 21M
13:38 | 13:38/mi
35K· 21.75 mi
4:07:34
Rank: #26277 (-46)
21M → 35K
9:49 | 13:07/mi
23M
4:22:58
Rank: #26241 (+36)
35K → 23M
15:24 | 12:18/mi
24M
4:36:51
Rank: #26326 (-85)
23M → 24M
13:53 | 13:53/mi
40K· 24.85 mi
4:46:09
Rank: #26239 (+87)
24M → 40K
9:18 | 10:53/mi
25.2M
4:50:30
Rank: #26220 (+19)
40K → 25.2M
4:21 | 12:37/mi
Finish· 26.22 mi
5:00:54
Rank: #26177 (+43)
25.2M → Finish
10:24 | 10:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:47
Pace10:35 /mi
2nd Half
Distance13.11 mi
Time2:42:07
Pace12:22 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3631:0310:0031:03
10:00
-
10K
6.21 mi12:21:091:02:3610:0431:33
10:09
+0:09
15K
9.32 mi12:54:531:36:2010:2033:44
10:51
+0:42
20K
12.43 mi13:29:222:10:4910:3234:29
11:06
+0:15
Half
13.11 mi13:37:202:18:4710:357:58
11:41
+0:35
25K
15.53 mi14:05:222:46:4910:4428:02
11:34
-0:07
30K
18.64 mi14:43:413:25:0811:0038:19
12:20
+0:46
20M
20.00 mi15:02:403:44:0711:1218:59
13:58
+1:38
21M
21.00 mi15:16:183:57:4511:1913:38
13:38
-0:20
35K
21.75 mi15:26:074:07:3411:239:49
13:07
-0:31
23M
23.00 mi15:41:314:22:5811:2615:24
12:18
-0:49
24M
24.00 mi15:55:244:36:5111:3213:53
13:53
+1:35
40K
24.85 mi16:04:424:46:0911:319:18
10:53
-3:00
25.2M
25.20 mi16:09:034:50:3011:324:21
12:37
+1:44
Finish
26.22 mi16:19:275:00:5411:2910:24
10:12
-2:25

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

10:00 /mi

Average Pace

11:29 /mi

Slowest Pace

13:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:02

39% of race

Time at Steady Pace

2:04:12

41% of race

Time at Slower Pace

1:00:40

20% of race

Average Pace: 11:29 /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 mi11:49:3631:0310:0031:03
10:00
#25551
10K
6.21 mi12:21:091:02:3610:0431:33
10:09
#25597
15K
9.32 mi12:54:531:36:2010:2033:44
10:51
#25973
20K
12.43 mi13:29:222:10:4910:3234:29
11:06
#26022
Half
13.11 mi13:37:202:18:4710:357:58
11:41
#26119
25K
15.53 mi14:05:222:46:4910:4428:02
11:34
#26102
30K
18.64 mi14:43:413:25:0811:0038:19
12:20
#26079
20M
20.00 mi15:02:403:44:0711:1218:59
13:58
#26222
21M
21.00 mi15:16:183:57:4511:1913:38
13:38
#26231
35K
21.75 mi15:26:074:07:3411:239:49
13:07
#26277
23M
23.00 mi15:41:314:22:5811:2615:24
12:18
#26241
24M
24.00 mi15:55:244:36:5111:3213:53
13:53
#26326
40K
24.85 mi16:04:424:46:0911:319:18
10:53
#26239
25.2M
25.20 mi16:09:034:50:3011:324:21
12:37
#26220
Finish
26.22 mi16:19:275:00:5411:2910:24
10:12
#26177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25551105081050826485(Top 93%)11057(Top 90%)11057(Top 1112%)
10K6.21 mi3.10 mi25597-4610557-4910557-4925629(Top 90%)10595(Top 87%)10595(Top 1066%)
15K9.32 mi3.11 mi25973-37610763-20610763-20626485(Top 93%)11057(Top 90%)11057(Top 1112%)
20K12.43 mi3.11 mi26022-4910802-3910802-3926152(Top 92%)10887(Top 89%)10887(Top 1095%)
Half13.11 mi0.68 mi26119-9710849-4710849-4727201(Top 96%)11528(Top 94%)11528(Top 1160%)
25K15.53 mi2.42 mi26102+1710848+110848+125937(Top 91%)10830(Top 89%)10830(Top 1090%)
30K18.64 mi3.11 mi26079+2310866-1810866-1825980(Top 91%)10931(Top 89%)10931(Top 1100%)
20M20.00 mi1.36 mi26222-14310961-9510961-9527263(Top 96%)11689(Top 96%)11689(Top 1176%)
21M21.00 mi1.00 mi26231-910978-1710978-1725798(Top 91%)10948(Top 90%)10948(Top 1101%)
35K21.75 mi0.75 mi26277-4611013-3511013-3527060(Top 95%)11622(Top 95%)11622(Top 1169%)
23M23.00 mi1.25 mi26241+3611003+1011003+1025530(Top 90%)10875(Top 89%)10875(Top 1094%)
24M24.00 mi1.00 mi26326-8511062-5911062-5927573(Top 97%)11920(Top 97%)11920(Top 1199%)
40K24.85 mi0.85 mi26239+8711023+3911023+3922836(Top 80%)9622(Top 79%)9622(Top 968%)
25.2M25.20 mi0.35 mi26220+1911010+1311010+1324376(Top 86%)10371(Top 85%)10371(Top 1043%)
Finish26.22 mi1.02 mi26177+4310988+2210988+2223517(Top 83%)9939(Top 81%)9939(Top 1000%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26485

Females

11057

F55-59

11057

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25629

Females

10595

F55-59

10595

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26485

Females

11057

F55-59

11057

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26152

Females

10887

F55-59

10887

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27201

Females

11528

F55-59

11528

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25937

Females

10830

F55-59

10830

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25980

Females

10931

F55-59

10931

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

27263

Females

11689

F55-59

11689

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25798

Females

10948

F55-59

10948

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

27060

Females

11622

F55-59

11622

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25530

Females

10875

F55-59

10875

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

27573

Females

11920

F55-59

11920

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22836

Females

9622

F55-59

9622

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24376

Females

10371

F55-59

10371

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23517

Females

9939

F55-59

9939

Passing Analysis

Category:
Athletes Passed
832
Passed By
1458
Net Change
-626
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25551
5K → 10K187233-46#25551#25597
10K → 15K33409-376#25597#25973
15K → 20K97146-49#25973#26022
20K → Half12109-97#26022#26119
Half → 25K8467+17#26119#26102
25K → 30K12097+23#26102#26079
30K → 20M18161-143#26079#26222
20M → 21M4251-9#26222#26231
21M → 35K1258-46#26231#26277
35K → 23M5519+36#26277#26241
23M → 24M994-85#26241#26326
24M → 40K903+87#26326#26239
40K → 25.2M223+19#26239#26220
25.2M → Finish518+43#26220#26177
TOTALS8321458-626
📊

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