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BOSTON MARATHON 2025

Katarzyna Prusakiewicz

Bib: 18148•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 28%
Division (F18-39)
#0 / 5469
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:46
Rank: #10669
Start → 5K
22:46 | 7:20/mi
10K· 6.21 mi
44:56
Rank: #9739 (+930)
5K → 10K
22:10 | 7:08/mi
15K· 9.32 mi
1:07:43
Rank: #9906 (-167)
10K → 15K
22:47 | 7:20/mi
20K· 12.43 mi
1:31:38
Rank: #10530 (-624)
15K → 20K
23:55 | 7:42/mi
Half· 13.11 mi
1:36:42
Rank: #10540 (-10)
20K → Half
5:04 | 7:26/mi
25K· 15.53 mi
1:55:27
Rank: #10712 (-172)
Half → 25K
18:45 | 7:44/mi
30K· 18.64 mi
2:21:57
Rank: #11553 (-841)
25K → 30K
26:30 | 8:32/mi
20M
2:33:46
Rank: #11804 (-251)
30K → 20M
11:49 | 8:42/mi
21M
2:43:04
Rank: #12017 (-213)
20M → 21M
9:18 | 9:18/mi
35K· 21.75 mi
2:49:16
Rank: #12091 (-74)
21M → 35K
6:12 | 8:17/mi
23M
3:00:09
Rank: #12238 (-147)
35K → 23M
10:53 | 8:42/mi
24M
3:08:36
Rank: #12317 (-79)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:16:02
Rank: #12389 (-72)
24M → 40K
7:26 | 8:42/mi
25.2M
3:19:13
Rank: #12387 (+2)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:27:08
Rank: #12311 (+76)
25.2M → Finish
7:55 | 7:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:42
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:50:26
Pace8:25 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2322:467:2022:46
7:20
-
10K
6.21 mi11:35:3344:567:1422:10
7:08
-0:12
15K
9.32 mi11:58:201:07:437:1622:47
7:20
+0:12
20K
12.43 mi12:22:151:31:387:2223:55
7:42
+0:22
Half
13.11 mi12:27:191:36:427:235:04
7:26
-0:16
25K
15.53 mi12:46:041:55:277:2618:45
7:44
+0:18
30K
18.64 mi13:12:342:21:577:3726:30
8:32
+0:48
20M
20.00 mi13:24:232:33:467:4111:49
8:42
+0:10
21M
21.00 mi13:33:412:43:047:469:18
9:18
+0:36
35K
21.75 mi13:39:532:49:167:476:12
8:17
-1:01
23M
23.00 mi13:50:463:00:097:5010:53
8:42
+0:25
24M
24.00 mi13:59:133:08:367:528:27
8:27
-0:15
40K
24.85 mi14:06:393:16:027:537:26
8:42
+0:15
25.2M
25.20 mi14:09:503:19:137:543:11
9:14
+0:32
Finish
26.22 mi14:17:453:27:087:547:55
7:46
-1:28

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

7:08 /mi

Average Pace

7:54 /mi

Slowest Pace

9:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:22

60% of race

Time at Steady Pace

41:09

20% of race

Time at Slower Pace

42:37

21% of race

Average Pace: 7:54 /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 mi11:13:2322:467:2022:46
7:20
#10669
10K
6.21 mi11:35:3344:567:1422:10
7:08
#9739
15K
9.32 mi11:58:201:07:437:1622:47
7:20
#9906
20K
12.43 mi12:22:151:31:387:2223:55
7:42
#10530
Half
13.11 mi12:27:191:36:427:235:04
7:26
#10540
25K
15.53 mi12:46:041:55:277:2618:45
7:44
#10712
30K
18.64 mi13:12:342:21:577:3726:30
8:32
#11553
20M
20.00 mi13:24:232:33:467:4111:49
8:42
#11804
21M
21.00 mi13:33:412:43:047:469:18
9:18
#12017
35K
21.75 mi13:39:532:49:167:476:12
8:17
#12091
23M
23.00 mi13:50:463:00:097:5010:53
8:42
#12238
24M
24.00 mi13:59:133:08:367:528:27
8:27
#12317
40K
24.85 mi14:06:393:16:027:537:26
8:42
#12389
25.2M
25.20 mi14:09:503:19:137:543:11
9:14
#12387
Finish
26.22 mi14:17:453:27:087:547:55
7:46
#12311
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi106692126212610286(Top 36%)2019(Top 17%)2019(Top 37%)
10K6.21 mi3.10 mi9739+9301693+4331693+4338978(Top 32%)1371(Top 11%)1371(Top 25%)
15K9.32 mi3.11 mi9906-1671801-1081801-10810286(Top 36%)2019(Top 17%)2019(Top 37%)
20K12.43 mi3.11 mi10530-6242115-3142115-31412405(Top 44%)3226(Top 26%)3226(Top 59%)
Half13.11 mi0.68 mi10540-102118-32118-311202(Top 39%)2543(Top 21%)2543(Top 46%)
25K15.53 mi2.42 mi10712-1722240-1222240-12211834(Top 42%)3037(Top 25%)3037(Top 56%)
30K18.64 mi3.11 mi11553-8412758-5182758-51814942(Top 53%)4867(Top 40%)4867(Top 89%)
20M20.00 mi1.36 mi11804-2512925-1672925-16715039(Top 53%)5060(Top 41%)5060(Top 93%)
21M21.00 mi1.00 mi12017-2133078-1533078-15315145(Top 53%)5249(Top 43%)5249(Top 96%)
35K21.75 mi0.75 mi12091-743151-733151-7314183(Top 50%)4771(Top 39%)4771(Top 87%)
23M23.00 mi1.25 mi12238-1473265-1143265-11414504(Top 51%)5062(Top 41%)5062(Top 93%)
24M24.00 mi1.00 mi12317-793334-693334-6914205(Top 50%)4924(Top 40%)4924(Top 90%)
40K24.85 mi0.85 mi12389-723400-663400-6614581(Top 51%)5280(Top 43%)5280(Top 97%)
25.2M25.20 mi0.35 mi12387+23410-103410-1013119(Top 46%)4538(Top 37%)4538(Top 83%)
Finish26.22 mi1.02 mi12311+763415-53415-511240(Top 40%)3576(Top 29%)3576(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10286

Females

2019

F18-39

2019

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8978

Females

1371

F18-39

1371

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10286

Females

2019

F18-39

2019

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12405

Females

3226

F18-39

3226

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

11202

Females

2543

F18-39

2543

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11834

Females

3037

F18-39

3037

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14942

Females

4867

F18-39

4867

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

15039

Females

5060

F18-39

5060

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15145

Females

5249

F18-39

5249

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14183

Females

4771

F18-39

4771

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14504

Females

5062

F18-39

5062

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14205

Females

4924

F18-39

4924

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14581

Females

5280

F18-39

5280

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13119

Females

4538

F18-39

4538

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11240

Females

3576

F18-39

3576

Passing Analysis

Category:
Athletes Passed
1835*
Passed By
3474
Net Change
-1642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10669
5K → 10K962*32+930#10669#9739
10K → 15K113279-167#9739#9906
15K → 20K56678-624#9906#10530
20K → Half3343-10#10530#10540
Half → 25K117289-172#10540#10712
25K → 30K70911-841#10712#11553
30K → 20M63314-251#11553#11804
20M → 21M59272-213#11804#12017
21M → 35K43117-74#12017#12091
35K → 23M69216-147#12091#12238
23M → 24M53132-79#12238#12317
24M → 40K50122-72#12317#12389
40K → 25.2M2826+2#12389#12387
25.2M → Finish11943+76#12387#12311
TOTALS1835*3474-1642

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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