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BOSTON MARATHON 2025

Paulina Serowik

Bib: 27964•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
34:48
Rank: #27757
Start → 5K
34:48 | 11:12/mi
10K· 6.21 mi
1:12:05
Rank: #27889 (-132)
5K → 10K
37:17 | 12:00/mi
15K· 9.32 mi
1:46:04
Rank: #27518 (+371)
10K → 15K
33:59 | 10:56/mi
20K· 12.43 mi
2:21:57
Rank: #27302 (+216)
15K → 20K
35:53 | 11:33/mi
Half· 13.11 mi
2:29:04
Rank: #27229 (+73)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:58:11
Rank: #27094 (+135)
Half → 25K
29:07 | 12:01/mi
30K· 18.64 mi
3:39:35
Rank: #27086 (+8)
25K → 30K
41:24 | 13:20/mi
20M
3:56:39
Rank: #27022 (+64)
30K → 20M
17:04 | 12:34/mi
21M
4:09:54
Rank: #26973 (+49)
20M → 21M
13:15 | 13:15/mi
35K· 21.75 mi
4:17:44
Rank: #26891 (+82)
21M → 35K
7:50 | 10:28/mi
23M
4:32:50
Rank: #26825 (+66)
35K → 23M
15:06 | 12:04/mi
24M
4:43:39
Rank: #26708 (+117)
23M → 24M
10:49 | 10:49/mi
40K· 24.85 mi
4:54:30
Rank: #26696 (+12)
24M → 40K
10:51 | 12:41/mi
25.2M
4:59:04
Rank: #26693 (+3)
40K → 25.2M
4:34 | 13:15/mi
Finish· 26.22 mi
5:09:24
Rank: #26618 (+75)
25.2M → Finish
10:20 | 10:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:29:04
Pace11:22 /mi
2nd Half
Distance13.11 mi
Time2:40:20
Pace12:14 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1234:4811:1234:48
11:12
-
10K
6.21 mi12:29:291:12:0511:3637:17
12:00
+0:48
15K
9.32 mi13:03:281:46:0411:2333:59
10:56
-1:04
20K
12.43 mi13:39:212:21:5711:2535:53
11:33
+0:37
Half
13.11 mi13:46:282:29:0411:227:07
10:26
-1:07
25K
15.53 mi14:15:352:58:1111:2829:07
12:01
+1:35
30K
18.64 mi14:56:593:39:3511:4741:24
13:20
+1:19
20M
20.00 mi15:14:033:56:3911:5017:04
12:34
-0:46
21M
21.00 mi15:27:184:09:5411:5413:15
13:15
+0:41
35K
21.75 mi15:35:084:17:4411:517:50
10:28
-2:47
23M
23.00 mi15:50:144:32:5011:5215:06
12:04
+1:36
24M
24.00 mi16:01:034:43:3911:4910:49
10:49
-1:15
40K
24.85 mi16:11:544:54:3011:5110:51
12:41
+1:52
25.2M
25.20 mi16:16:284:59:0411:524:34
13:15
+0:34
Finish
26.22 mi16:26:485:09:2411:4910:20
10:08
-3:07

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

10:08 /mi

Average Pace

11:49 /mi

Slowest Pace

13:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:53

34% of race

Time at Steady Pace

1:57:23

38% of race

Time at Slower Pace

1:27:08

28% of race

Average Pace: 11:48 /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 mi11:52:1234:4811:1234:48
11:12
#27757
10K
6.21 mi12:29:291:12:0511:3637:17
12:00
#27889
15K
9.32 mi13:03:281:46:0411:2333:59
10:56
#27518
20K
12.43 mi13:39:212:21:5711:2535:53
11:33
#27302
Half
13.11 mi13:46:282:29:0411:227:07
10:26
#27229
25K
15.53 mi14:15:352:58:1111:2829:07
12:01
#27094
30K
18.64 mi14:56:593:39:3511:4741:24
13:20
#27086
20M
20.00 mi15:14:033:56:3911:5017:04
12:34
#27022
21M
21.00 mi15:27:184:09:5411:5413:15
13:15
#26973
35K
21.75 mi15:35:084:17:4411:517:50
10:28
#26891
23M
23.00 mi15:50:144:32:5011:5215:06
12:04
#26825
24M
24.00 mi16:01:034:43:3911:4910:49
10:49
#26708
40K
24.85 mi16:11:544:54:3011:5110:51
12:41
#26696
25.2M
25.20 mi16:16:284:59:0411:524:34
13:15
#26693
Finish
26.22 mi16:26:485:09:2411:4910:20
10:08
#26618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27757117981179826594(Top 94%)11126(Top 91%)11126(Top 203%)
10K6.21 mi3.10 mi27889-13211886-8811886-8827940(Top 98%)11935(Top 98%)11935(Top 218%)
15K9.32 mi3.11 mi27518+37111669+21711669+21726594(Top 94%)11126(Top 91%)11126(Top 203%)
20K12.43 mi3.11 mi27302+21611542+12711542+12726677(Top 94%)11201(Top 92%)11201(Top 205%)
Half13.11 mi0.68 mi27229+7311504+3811504+3825673(Top 90%)10654(Top 87%)10654(Top 195%)
25K15.53 mi2.42 mi27094+13511436+6811436+6826439(Top 93%)11101(Top 91%)11101(Top 203%)
30K18.64 mi3.11 mi27086+811447-1111447-1126984(Top 95%)11484(Top 94%)11484(Top 210%)
20M20.00 mi1.36 mi27022+6411416+3111416+3125963(Top 91%)11000(Top 90%)11000(Top 201%)
21M21.00 mi1.00 mi26973+4911397+1911397+1925364(Top 89%)10745(Top 88%)10745(Top 196%)
35K21.75 mi0.75 mi26891+8211350+4711350+4723077(Top 81%)9599(Top 79%)9599(Top 176%)
23M23.00 mi1.25 mi26825+6611328+2211328+2225198(Top 89%)10705(Top 88%)10705(Top 196%)
24M24.00 mi1.00 mi26708+11711275+5311275+5323581(Top 83%)9919(Top 81%)9919(Top 181%)
40K24.85 mi0.85 mi26696+12112751127525908(Top 91%)11104(Top 91%)11104(Top 203%)
25.2M25.20 mi0.35 mi26693+3112751127525326(Top 89%)10860(Top 89%)10860(Top 199%)
Finish26.22 mi1.02 mi26618+7511240+3511240+3523328(Top 82%)9842(Top 80%)9842(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26594

Females

11126

F18-39

11126

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

27940

Females

11935

F18-39

11935

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26594

Females

11126

F18-39

11126

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26677

Females

11201

F18-39

11201

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25673

Females

10654

F18-39

10654

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

26439

Females

11101

F18-39

11101

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

26984

Females

11484

F18-39

11484

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25963

Females

11000

F18-39

11000

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25364

Females

10745

F18-39

10745

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23077

Females

9599

F18-39

9599

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

25198

Females

10705

F18-39

10705

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23581

Females

9919

F18-39

9919

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25908

Females

11104

F18-39

11104

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25326

Females

10860

F18-39

10860

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23328

Females

9842

F18-39

9842

Passing Analysis

Category:
Athletes Passed
1452
Passed By
313
Net Change
+1139
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27757
5K → 10K46178-132#27757#27889
10K → 15K3710+371#27889#27518
15K → 20K2259+216#27518#27302
20K → Half730+73#27302#27229
Half → 25K14914+135#27229#27094
25K → 30K8274+8#27094#27086
30K → 20M695+64#27086#27022
20M → 21M534+49#27022#26973
21M → 35K831+82#26973#26891
35K → 23M715+66#26891#26825
23M → 24M1192+117#26825#26708
24M → 40K2816+12#26708#26696
40K → 25.2M63+3#26696#26693
25.2M → Finish772+75#26693#26618
TOTALS1452313+1139
📊

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