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BOSTON MARATHON 2025

Katrin Maesse

Bib: 13647•F

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Division (F18-39)
#0 / 5469
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:57
Rank: #11205
Start → 5K
7:23/mi
22:57 split
10K· 6.21 mi
45:57
Rank: #11201 (+4)
5K → 10K
7:24/mi
23:00 split
15K· 9.32 mi
1:08:52
Rank: #10961 (+240)
10K → 15K
7:23/mi
22:55 split
20K· 12.43 mi
1:31:51
Rank: #10678 (+283)
15K → 20K
7:24/mi
22:59 split
Half· 13.11 mi
1:36:48
Rank: #10608 (+70)
20K → Half
7:15/mi
4:57 split
25K· 15.53 mi
1:54:51
Rank: #10390 (+218)
Half → 25K
7:27/mi
18:03 split
30K· 18.64 mi
2:18:26
Rank: #9927 (+463)
25K → 30K
7:35/mi
23:35 split
20M
2:28:52
Rank: #9737 (+190)
30K → 20M
7:41/mi
10:26 split
21M
2:36:59
Rank: #9600 (+137)
20M → 21M
8:07/mi
8:07 split
35K· 21.75 mi
2:42:29
Rank: #9501 (+99)
21M → 35K
7:21/mi
5:30 split
23M
2:51:56
Rank: #9286 (+215)
35K → 23M
7:33/mi
9:27 split
24M
2:59:20
Rank: #9145 (+141)
23M → 24M
7:24/mi
7:24 split
40K· 24.85 mi
3:05:47
Rank: #9023 (+122)
24M → 40K
7:33/mi
6:27 split
25.2M
3:08:40
Rank: #8988 (+35)
40K → 25.2M
8:22/mi
2:53 split
Finish· 26.22 mi
3:16:02
Rank: #8872 (+116)
25.2M → Finish
7:14/mi
7:22 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:48
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:39:14
Pace7:34 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0122:577:2322:57
7:23
-
10K
6.21 mi11:15:0145:577:2423:00
7:24
+0:01
15K
9.32 mi11:37:561:08:527:2322:55
7:23
-0:01
20K
12.43 mi12:00:551:31:517:2322:59
7:24
+0:01
Half
13.11 mi12:05:521:36:487:234:57
7:15
-0:09
25K
15.53 mi12:23:551:54:517:2418:03
7:27
+0:12
30K
18.64 mi12:47:302:18:267:2623:35
7:35
+0:08
20M
20.00 mi12:57:562:28:527:2710:26
7:41
+0:06
21M
21.00 mi13:06:032:36:597:298:07
8:07
+0:26
35K
21.75 mi13:11:332:42:297:285:30
7:21
-0:46
23M
23.00 mi13:21:002:51:567:299:27
7:33
+0:12
24M
24.00 mi13:28:242:59:207:287:24
7:24
-0:09
40K
24.85 mi13:34:513:05:477:286:27
7:33
+0:09
25.2M
25.20 mi13:37:443:08:407:292:53
8:22
+0:49
Finish
26.22 mi13:45:063:16:027:297:22
7:14
-1:08

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

7:14 /mi

Average Pace

7:29 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:02

94% of race

Time at Steady Pace

11:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:29 /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 mi10:52:0122:577:2322:57
7:23
#11205
10K
6.21 mi11:15:0145:577:2423:00
7:24
#11201
15K
9.32 mi11:37:561:08:527:2322:55
7:23
#10961
20K
12.43 mi12:00:551:31:517:2322:59
7:24
#10678
Half
13.11 mi12:05:521:36:487:234:57
7:15
#10608
25K
15.53 mi12:23:551:54:517:2418:03
7:27
#10390
30K
18.64 mi12:47:302:18:267:2623:35
7:35
#9927
20M
20.00 mi12:57:562:28:527:2710:26
7:41
#9737
21M
21.00 mi13:06:032:36:597:298:07
8:07
#9600
35K
21.75 mi13:11:332:42:297:285:30
7:21
#9501
23M
23.00 mi13:21:002:51:567:299:27
7:33
#9286
24M
24.00 mi13:28:242:59:207:287:24
7:24
#9145
40K
24.85 mi13:34:513:05:477:286:27
7:33
#9023
25.2M
25.20 mi13:37:443:08:407:292:53
8:22
#8988
Finish
26.22 mi13:45:063:16:027:297:22
7:14
#8872
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112052372237210654(Top 38%)2196(Top 18%)2196(Top 40%)
10K6.21 mi3.10 mi11201+42398-262398-2611212(Top 39%)2419(Top 20%)2419(Top 44%)
15K9.32 mi3.11 mi10961+2402298+1002298+10010654(Top 38%)2196(Top 18%)2196(Top 40%)
20K12.43 mi3.11 mi10678+2832184+1142184+1149898(Top 35%)1908(Top 16%)1908(Top 35%)
Half13.11 mi0.68 mi10608+702150+342150+349664(Top 34%)1792(Top 15%)1792(Top 33%)
25K15.53 mi2.42 mi10390+2182079+712079+719513(Top 33%)1880(Top 15%)1880(Top 34%)
30K18.64 mi3.11 mi9927+4631922+1571922+1578394(Top 30%)1553(Top 13%)1553(Top 28%)
20M20.00 mi1.36 mi9737+1901870+521870+528224(Top 29%)1628(Top 13%)1628(Top 30%)
21M21.00 mi1.00 mi9600+1371838+321838+328079(Top 28%)1761(Top 14%)1761(Top 32%)
35K21.75 mi0.75 mi9501+991813+251813+257610(Top 27%)1539(Top 13%)1539(Top 28%)
23M23.00 mi1.25 mi9286+2151763+501763+506936(Top 24%)1374(Top 11%)1374(Top 25%)
24M24.00 mi1.00 mi9145+1411730+331730+337075(Top 25%)1489(Top 12%)1489(Top 27%)
40K24.85 mi0.85 mi9023+1221718+121718+127089(Top 25%)1591(Top 13%)1591(Top 29%)
25.2M25.20 mi0.35 mi8988+351719-11719-18007(Top 28%)2065(Top 17%)2065(Top 38%)
Finish26.22 mi1.02 mi8872+1161715+41715+47249(Top 26%)1748(Top 14%)1748(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10654

Females

2196

F18-39

2196

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

11212

Females

2419

F18-39

2419

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10654

Females

2196

F18-39

2196

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9898

Females

1908

F18-39

1908

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9664

Females

1792

F18-39

1792

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9513

Females

1880

F18-39

1880

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8394

Females

1553

F18-39

1553

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8224

Females

1628

F18-39

1628

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

8079

Females

1761

F18-39

1761

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7610

Females

1539

F18-39

1539

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6936

Females

1374

F18-39

1374

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7075

Females

1489

F18-39

1489

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7089

Females

1591

F18-39

1591

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

8007

Females

2065

F18-39

2065

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7249

Females

1748

F18-39

1748

Passing Analysis

Category:
Athletes Passed
2946*
Passed By
612
Net Change
+2333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11205
5K → 10K249245+4#11205#11201
10K → 15K30767+240#11201#10961
15K → 20K32037+283#10961#10678
20K → Half788+70#10678#10608
Half → 25K27153+218#10608#10390
25K → 30K498*35+463#10390#9927
30K → 20M21726+190#9927#9737
20M → 21M16225+137#9737#9600
21M → 35K11011+99#9600#9501
35K → 23M23116+215#9501#9286
23M → 24M16221+141#9286#9145
24M → 40K14927+122#9145#9023
40K → 25.2M5217+35#9023#8988
25.2M → Finish14024+116#8988#8872
TOTALS2946*612+2333

* 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