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BOSTON MARATHON 2025

Kristy Hirn

Bib: 22398•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:17
Rank: #17659
Start → 5K
25:17 | 8:08/mi
10K· 6.21 mi
50:33
Rank: #17538 (+121)
5K → 10K
25:16 | 8:08/mi
15K· 9.32 mi
1:15:55
Rank: #17400 (+138)
10K → 15K
25:22 | 8:10/mi
20K· 12.43 mi
1:42:06
Rank: #17448 (-48)
15K → 20K
26:11 | 8:26/mi
Half· 13.11 mi
1:47:57
Rank: #17577 (-129)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:09:45
Rank: #17945 (-368)
Half → 25K
21:48 | 8:59/mi
30K· 18.64 mi
2:39:59
Rank: #18653 (-708)
25K → 30K
30:14 | 9:44/mi
20M
2:53:27
Rank: #18865 (-212)
30K → 20M
13:28 | 9:55/mi
21M
3:04:15
Rank: #19036 (-171)
20M → 21M
10:48 | 10:48/mi
35K· 21.75 mi
3:11:36
Rank: #19164 (-128)
21M → 35K
7:21 | 9:49/mi
23M
3:24:26
Rank: #19348 (-184)
35K → 23M
12:50 | 10:15/mi
24M
3:34:43
Rank: #19541 (-193)
23M → 24M
10:17 | 10:17/mi
40K· 24.85 mi
3:43:40
Rank: #19683 (-142)
24M → 40K
8:57 | 10:28/mi
25.2M
3:47:41
Rank: #19747 (-64)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
3:57:50
Rank: #19900 (-153)
25.2M → Finish
10:09 | 9:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:09:53
Pace9:54 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3825:178:0825:17
8:08
-
10K
6.21 mi11:44:5450:338:0825:16
8:08
0:00
15K
9.32 mi12:10:161:15:558:0925:22
8:10
+0:02
20K
12.43 mi12:36:271:42:068:1326:11
8:26
+0:16
Half
13.11 mi12:42:181:47:578:145:51
8:34
+0:08
25K
15.53 mi13:04:062:09:458:2121:48
8:59
+0:25
30K
18.64 mi13:34:202:39:598:3530:14
9:44
+0:45
20M
20.00 mi13:47:482:53:278:4013:28
9:55
+0:11
21M
21.00 mi13:58:363:04:158:4610:48
10:48
+0:53
35K
21.75 mi14:05:573:11:368:497:21
9:49
-0:59
23M
23.00 mi14:18:473:24:268:5312:50
10:15
+0:26
24M
24.00 mi14:29:043:34:438:5710:17
10:17
+0:02
40K
24.85 mi14:38:013:43:409:008:57
10:28
+0:11
25.2M
25.20 mi14:42:023:47:419:024:01
11:39
+1:11
Finish
26.22 mi14:52:113:57:509:0510:09
9:58
-1:41

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

8:08 /mi

Average Pace

9:05 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:45

55% of race

Time at Steady Pace

1:24:19

35% of race

Time at Slower Pace

23:46

10% of race

Average Pace: 9:04 /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 mi11:19:3825:178:0825:17
8:08
#17659
10K
6.21 mi11:44:5450:338:0825:16
8:08
#17538
15K
9.32 mi12:10:161:15:558:0925:22
8:10
#17400
20K
12.43 mi12:36:271:42:068:1326:11
8:26
#17448
Half
13.11 mi12:42:181:47:578:145:51
8:34
#17577
25K
15.53 mi13:04:062:09:458:2121:48
8:59
#17945
30K
18.64 mi13:34:202:39:598:3530:14
9:44
#18653
20M
20.00 mi13:47:482:53:278:4013:28
9:55
#18865
21M
21.00 mi13:58:363:04:158:4610:48
10:48
#19036
35K
21.75 mi14:05:573:11:368:497:21
9:49
#19164
23M
23.00 mi14:18:473:24:268:5312:50
10:15
#19348
24M
24.00 mi14:29:043:34:438:5710:17
10:17
#19541
40K
24.85 mi14:38:013:43:409:008:57
10:28
#19683
25.2M
25.20 mi14:42:023:47:419:024:01
11:39
#19747
Finish
26.22 mi14:52:113:57:509:0510:09
9:58
#19900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi176596131613117186(Top 61%)5842(Top 48%)5842(Top 448%)
10K6.21 mi3.10 mi17538+1216064+676064+6717453(Top 61%)5975(Top 49%)5975(Top 459%)
15K9.32 mi3.11 mi17400+1385952+1125952+11217186(Top 61%)5842(Top 48%)5842(Top 448%)
20K12.43 mi3.11 mi17448-486002-506002-5017737(Top 62%)6191(Top 51%)6191(Top 475%)
Half13.11 mi0.68 mi17577-1296080-786080-7819740(Top 69%)7328(Top 60%)7328(Top 562%)
25K15.53 mi2.42 mi17945-3686326-2466326-24619863(Top 70%)7459(Top 61%)7459(Top 572%)
30K18.64 mi3.11 mi18653-7086749-4236749-42320786(Top 73%)8109(Top 66%)8109(Top 622%)
20M20.00 mi1.36 mi18865-2126896-1476896-14720644(Top 73%)8163(Top 67%)8163(Top 626%)
21M21.00 mi1.00 mi19036-1717025-1297025-12920844(Top 73%)8368(Top 68%)8368(Top 642%)
35K21.75 mi0.75 mi19164-1287109-847109-8421400(Top 75%)8715(Top 71%)8715(Top 669%)
23M23.00 mi1.25 mi19348-1847253-1447253-14421276(Top 75%)8689(Top 71%)8689(Top 667%)
24M24.00 mi1.00 mi19541-1937385-1327385-13222198(Top 78%)9231(Top 75%)9231(Top 708%)
40K24.85 mi0.85 mi19683-1427483-987483-9821839(Top 77%)9112(Top 75%)9112(Top 699%)
25.2M25.20 mi0.35 mi19747-647526-437526-4322449(Top 79%)9372(Top 77%)9372(Top 719%)
Finish26.22 mi1.02 mi19900-1537632-1067632-10622813(Top 80%)9571(Top 78%)9571(Top 735%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17186

Females

5842

F50-54

5842

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17453

Females

5975

F50-54

5975

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17186

Females

5842

F50-54

5842

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17737

Females

6191

F50-54

6191

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19740

Females

7328

F50-54

7328

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

19863

Females

7459

F50-54

7459

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20786

Females

8109

F50-54

8109

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20644

Females

8163

F50-54

8163

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20844

Females

8368

F50-54

8368

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21400

Females

8715

F50-54

8715

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21276

Females

8689

F50-54

8689

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22198

Females

9231

F50-54

9231

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21839

Females

9112

F50-54

9112

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22449

Females

9372

F50-54

9372

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22813

Females

9571

F50-54

9571

Passing Analysis

Category:
Athletes Passed
1250
Passed By
3491
Net Change
-2241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17659
5K → 10K349228+121#17659#17538
10K → 15K286148+138#17538#17400
15K → 20K169217-48#17400#17448
20K → Half7136-129#17448#17577
Half → 25K84452-368#17577#17945
25K → 30K76784-708#17945#18653
30K → 20M55267-212#18653#18865
20M → 21M56227-171#18865#19036
21M → 35K22150-128#19036#19164
35K → 23M53237-184#19164#19348
23M → 24M29222-193#19348#19541
24M → 40K30172-142#19541#19683
40K → 25.2M1175-64#19683#19747
25.2M → Finish23176-153#19747#19900
TOTALS12503491-2241
📊

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