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BOSTON MARATHON 2025

Kathryn Healy

Bib: 25884•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
27:29
Rank: #21751
Start → 5K
8:51/mi
27:29 split
10K· 6.21 mi
54:22
Rank: #21174 (+577)
5K → 10K
8:39/mi
26:53 split
15K· 9.32 mi
1:21:21
Rank: #20900 (+274)
10K → 15K
8:41/mi
26:59 split
20K· 12.43 mi
1:50:29
Rank: #21399 (-499)
15K → 20K
9:23/mi
29:08 split
Half· 13.11 mi
1:56:35
Rank: #21405 (-6)
20K → Half
8:56/mi
6:06 split
25K· 15.53 mi
2:23:04
Rank: #22472 (-1067)
Half → 25K
10:55/mi
26:29 split
30K· 18.64 mi
2:57:57
Rank: #22940 (-468)
25K → 30K
11:14/mi
34:53 split
20M
3:14:56
Rank: #23269 (-329)
30K → 20M
12:30/mi
16:59 split
21M
3:26:12
Rank: #23203 (+66)
20M → 21M
11:16/mi
11:16 split
35K· 21.75 mi
3:33:57
Rank: #23185 (+18)
21M → 35K
10:22/mi
7:45 split
23M
3:48:05
Rank: #23248 (-63)
35K → 23M
11:17/mi
14:08 split
24M
3:59:34
Rank: #23328 (-80)
23M → 24M
11:29/mi
11:29 split
40K· 24.85 mi
4:09:01
Rank: #23300 (+28)
24M → 40K
11:03/mi
9:27 split
25.2M
4:12:34
Rank: #23247 (+53)
40K → 25.2M
10:18/mi
3:33 split
Finish· 26.22 mi
4:21:25
Rank: #23114 (+133)
25.2M → Finish
8:41/mi
8:51 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:35
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:24:50
Pace11:03 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:3327:298:5127:29
8:51
-
10K
6.21 mi12:09:2654:228:4526:53
8:39
-0:12
15K
9.32 mi12:36:251:21:218:4426:59
8:41
+0:02
20K
12.43 mi13:05:331:50:298:5329:08
9:23
+0:42
Half
13.11 mi13:11:391:56:358:546:06
8:56
-0:27
25K
15.53 mi13:38:082:23:049:1326:29
10:55
+1:59
30K
18.64 mi14:13:012:57:579:3334:53
11:14
+0:19
20M
20.00 mi14:30:003:14:569:4516:59
12:30
+1:16
21M
21.00 mi14:41:163:26:129:4911:16
11:16
-1:14
35K
21.75 mi14:49:013:33:579:507:45
10:22
-0:54
23M
23.00 mi15:03:093:48:059:5514:08
11:17
+0:55
24M
24.00 mi15:14:383:59:349:5911:29
11:29
+0:12
40K
24.85 mi15:24:054:09:0110:019:27
11:03
-0:26
25.2M
25.20 mi15:27:384:12:3410:013:33
10:18
-0:45
Finish
26.22 mi15:36:294:21:259:598:51
8:41
-1:37

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

8:39 /mi

Average Pace

9:59 /mi

Slowest Pace

12:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:26

48% of race

Time at Steady Pace

37:47

14% of race

Time at Slower Pace

1:38:12

38% of race

Average Pace: 9:58 /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 mi11:42:3327:298:5127:29
8:51
#21751
10K
6.21 mi12:09:2654:228:4526:53
8:39
#21174
15K
9.32 mi12:36:251:21:218:4426:59
8:41
#20900
20K
12.43 mi13:05:331:50:298:5329:08
9:23
#21399
Half
13.11 mi13:11:391:56:358:546:06
8:56
#21405
25K
15.53 mi13:38:082:23:049:1326:29
10:55
#22472
30K
18.64 mi14:13:012:57:579:3334:53
11:14
#22940
20M
20.00 mi14:30:003:14:569:4516:59
12:30
#23269
21M
21.00 mi14:41:163:26:129:4911:16
11:16
#23203
35K
21.75 mi14:49:013:33:579:507:45
10:22
#23185
23M
23.00 mi15:03:093:48:059:5514:08
11:17
#23248
24M
24.00 mi15:14:383:59:349:5911:29
11:29
#23328
40K
24.85 mi15:24:054:09:0110:019:27
11:03
#23300
25.2M
25.20 mi15:27:384:12:3410:013:33
10:18
#23247
Finish
26.22 mi15:36:294:21:259:598:51
8:41
#23114
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi217518491849120425(Top 72%)7673(Top 63%)7673(Top 140%)
10K6.21 mi3.10 mi21174+5778148+3438148+34320637(Top 73%)7826(Top 64%)7826(Top 143%)
15K9.32 mi3.11 mi20900+2747989+1597989+15920425(Top 72%)7673(Top 63%)7673(Top 140%)
20K12.43 mi3.11 mi21399-4998262-2738262-27322508(Top 79%)8869(Top 73%)8869(Top 162%)
Half13.11 mi0.68 mi21405-68267-58267-521626(Top 76%)8395(Top 69%)8395(Top 154%)
25K15.53 mi2.42 mi22472-10678854-5878854-58725102(Top 88%)10346(Top 85%)10346(Top 189%)
30K18.64 mi3.11 mi22940-4689150-2969150-29624427(Top 86%)10089(Top 83%)10089(Top 184%)
20M20.00 mi1.36 mi23269-3299347-1979347-19725911(Top 91%)10966(Top 90%)10966(Top 201%)
21M21.00 mi1.00 mi23203+669337+109337+1022099(Top 78%)9026(Top 74%)9026(Top 165%)
35K21.75 mi0.75 mi23185+189331+69331+622860(Top 80%)9473(Top 77%)9473(Top 173%)
23M23.00 mi1.25 mi23248-639401-709401-7023864(Top 84%)10033(Top 82%)10033(Top 183%)
24M24.00 mi1.00 mi23328-809455-549455-5424876(Top 88%)10570(Top 86%)10570(Top 193%)
40K24.85 mi0.85 mi23300+289459-49459-423278(Top 82%)9836(Top 80%)9836(Top 180%)
25.2M25.20 mi0.35 mi23247+539439+209439+2018352(Top 65%)7340(Top 60%)7340(Top 134%)
Finish26.22 mi1.02 mi23114+1339381+589381+5817432(Top 61%)6788(Top 56%)6788(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20425

Females

7673

F18-39

7673

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20637

Females

7826

F18-39

7826

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20425

Females

7673

F18-39

7673

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22508

Females

8869

F18-39

8869

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21626

Females

8395

F18-39

8395

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

25102

Females

10346

F18-39

10346

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24427

Females

10089

F18-39

10089

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25911

Females

10966

F18-39

10966

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22099

Females

9026

F18-39

9026

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22860

Females

9473

F18-39

9473

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23864

Females

10033

F18-39

10033

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

24876

Females

10570

F18-39

10570

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23278

Females

9836

F18-39

9836

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18352

Females

7340

F18-39

7340

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17432

Females

6788

F18-39

6788

Passing Analysis

Category:
Athletes Passed
1701
Passed By
3064
Net Change
-1363
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21751
5K → 10K65679+577#21751#21174
10K → 15K34874+274#21174#20900
15K → 20K95594-499#20900#21399
20K → Half3339-6#21399#21405
Half → 25K121079-1067#21405#22472
25K → 30K53521-468#22472#22940
30K → 20M23352-329#22940#23269
20M → 21M9832+66#23269#23203
21M → 35K4729+18#23203#23185
35K → 23M52115-63#23185#23248
23M → 24M30110-80#23248#23328
24M → 40K6537+28#23328#23300
40K → 25.2M530+53#23300#23247
25.2M → Finish1363+133#23247#23114
TOTALS17013064-1363
📊

Passing Visuals

Category:
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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