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BOSTON MARATHON 2025

Kathrine Heroy

Bib: 17154•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Masters (Masters Women)
#0 / 6759
Top 16%
Division (F40-44)
#0 / 1718
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:14
Rank: #14816
Start → 5K
24:14 | 7:48/mi
10K· 6.21 mi
48:28
Rank: #14793 (+23)
5K → 10K
24:14 | 7:48/mi
15K· 9.32 mi
1:12:35
Rank: #14516 (+277)
10K → 15K
24:07 | 7:46/mi
20K· 12.43 mi
1:36:46
Rank: #14144 (+372)
15K → 20K
24:11 | 7:47/mi
Half· 13.11 mi
1:42:03
Rank: #14122 (+22)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:01:06
Rank: #13856 (+266)
Half → 25K
19:03 | 7:51/mi
30K· 18.64 mi
2:26:09
Rank: #13412 (+444)
25K → 30K
25:03 | 8:04/mi
20M
2:37:21
Rank: #13268 (+144)
30K → 20M
11:12 | 8:15/mi
21M
2:45:56
Rank: #13105 (+163)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:51:57
Rank: #13078 (+27)
21M → 35K
6:01 | 8:03/mi
23M
3:02:21
Rank: #12990 (+88)
35K → 23M
10:24 | 8:18/mi
24M
3:10:31
Rank: #12955 (+35)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:17:52
Rank: #12981 (-26)
24M → 40K
7:21 | 8:36/mi
25.2M
3:21:07
Rank: #13008 (-27)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:29:38
Rank: #13118 (-110)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:47:35
Pace8:12 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5224:147:4824:14
7:48
-
10K
6.21 mi11:41:0648:287:4824:14
7:48
0:00
15K
9.32 mi12:05:131:12:357:4724:07
7:46
-0:02
20K
12.43 mi12:29:241:36:467:4724:11
7:47
+0:01
Half
13.11 mi12:34:411:42:037:475:17
7:45
-0:02
25K
15.53 mi12:53:442:01:067:4819:03
7:51
+0:06
30K
18.64 mi13:18:472:26:097:5025:03
8:04
+0:13
20M
20.00 mi13:29:592:37:217:5211:12
8:15
+0:11
21M
21.00 mi13:38:342:45:567:548:35
8:35
+0:20
35K
21.75 mi13:44:352:51:577:546:01
8:03
-0:32
23M
23.00 mi13:54:593:02:217:5610:24
8:18
+0:15
24M
24.00 mi14:03:093:10:317:568:10
8:10
-0:08
40K
24.85 mi14:10:303:17:527:587:21
8:36
+0:26
25.2M
25.20 mi14:13:453:21:077:593:15
9:25
+0:49
Finish
26.22 mi14:22:163:29:388:008:31
8:21
-1:04

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

7:45 /mi

Average Pace

8:00 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:03

49% of race

Time at Steady Pace

1:09:29

33% of race

Time at Slower Pace

38:06

18% of race

Average Pace: 8:00 /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 mi11:16:5224:147:4824:14
7:48
#14816
10K
6.21 mi11:41:0648:287:4824:14
7:48
#14793
15K
9.32 mi12:05:131:12:357:4724:07
7:46
#14516
20K
12.43 mi12:29:241:36:467:4724:11
7:47
#14144
Half
13.11 mi12:34:411:42:037:475:17
7:45
#14122
25K
15.53 mi12:53:442:01:067:4819:03
7:51
#13856
30K
18.64 mi13:18:472:26:097:5025:03
8:04
#13412
20M
20.00 mi13:29:592:37:217:5211:12
8:15
#13268
21M
21.00 mi13:38:342:45:567:548:35
8:35
#13105
35K
21.75 mi13:44:352:51:577:546:01
8:03
#13078
23M
23.00 mi13:54:593:02:217:5610:24
8:18
#12990
24M
24.00 mi14:03:093:10:317:568:10
8:10
#12955
40K
24.85 mi14:10:303:17:527:587:21
8:36
#12981
25.2M
25.20 mi14:13:453:21:077:593:15
9:25
#13008
Finish
26.22 mi14:22:163:29:388:008:31
8:21
#13118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi148164413441314054(Top 49%)4046(Top 33%)4046(Top 236%)
10K6.21 mi3.10 mi14793+234426-134426-1314815(Top 52%)4434(Top 36%)4434(Top 258%)
15K9.32 mi3.11 mi14516+2774266+1604266+16014054(Top 49%)4046(Top 33%)4046(Top 236%)
20K12.43 mi3.11 mi14144+3724089+1774089+17713158(Top 46%)3633(Top 30%)3633(Top 211%)
Half13.11 mi0.68 mi14122+224075+144075+1413828(Top 49%)3967(Top 32%)3967(Top 231%)
25K15.53 mi2.42 mi13856+2663965+1103965+11012832(Top 45%)3583(Top 29%)3583(Top 209%)
30K18.64 mi3.11 mi13412+4443773+1923773+19211847(Top 42%)3222(Top 26%)3222(Top 188%)
20M20.00 mi1.36 mi13268+1443732+413732+4112101(Top 43%)3505(Top 29%)3505(Top 204%)
21M21.00 mi1.00 mi13105+1633665+673665+6711028(Top 39%)3123(Top 26%)3123(Top 182%)
35K21.75 mi0.75 mi13078+273668-33668-312571(Top 44%)3934(Top 32%)3934(Top 229%)
23M23.00 mi1.25 mi12990+883662+63662+612096(Top 43%)3789(Top 31%)3789(Top 221%)
24M24.00 mi1.00 mi12955+353680-183680-1812377(Top 44%)3983(Top 33%)3983(Top 232%)
40K24.85 mi0.85 mi12981-263723-433723-4314051(Top 49%)4988(Top 41%)4988(Top 290%)
25.2M25.20 mi0.35 mi13008-273745-223745-2214178(Top 50%)5098(Top 42%)5098(Top 297%)
Finish26.22 mi1.02 mi13118-1103828-833828-8315304(Top 54%)5637(Top 46%)5637(Top 328%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

14054

Females

4046

F40-44

4046

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14815

Females

4434

F40-44

4434

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

14054

Females

4046

F40-44

4046

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

13158

Females

3633

F40-44

3633

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13828

Females

3967

F40-44

3967

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12832

Females

3583

F40-44

3583

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11847

Females

3222

F40-44

3222

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12101

Females

3505

F40-44

3505

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11028

Females

3123

F40-44

3123

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12571

Females

3934

F40-44

3934

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

12096

Females

3789

F40-44

3789

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12377

Females

3983

F40-44

3983

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

14051

Females

4988

F40-44

4988

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14178

Females

5098

F40-44

5098

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15304

Females

5637

F40-44

5637

Passing Analysis

Category:
Athletes Passed
2697
Passed By
999
Net Change
+1698
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14816
5K → 10K302279+23#14816#14793
10K → 15K34669+277#14793#14516
15K → 20K41139+372#14516#14144
20K → Half4220+22#14144#14122
Half → 25K31347+266#14122#13856
25K → 30K47834+444#13856#13412
30K → 20M18440+144#13412#13268
20M → 21M19431+163#13268#13105
21M → 35K6538+27#13105#13078
35K → 23M14961+88#13078#12990
23M → 24M9459+35#12990#12955
24M → 40K6389-26#12955#12981
40K → 25.2M2350-27#12981#13008
25.2M → Finish33143-110#13008#13118
TOTALS2697999+1698
📊

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