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BOSTON MARATHON 2025

Allison Katterheinrich

Bib: 27919•F

OH

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:04/mi
31:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:32/mi
1:00:52
↑ 79↓ 1380.4%
15K· 9.32 mi
9:59/mi
1:31:53
↑ 67↓ 78
20K· 12.43 mi
10:32/mi
2:04:36
↑ 106↓ 860.1%
Half· 13.11 mi
10:51/mi
2:12:00
↑ 19↓ 370.5%
25K· 15.53 mi
10:40/mi
2:37:52
↑ 66↓ 880.2%
30K· 18.64 mi
11:06/mi
3:12:22
↑ 181↓ 1480.2%
20M
12:03/mi
3:28:45
↑ 64↓ 500.2%
21M
12:11/mi
3:40:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:36/mi
3:49:37
↑ 17↓ 861.7%
23M
11:52/mi
4:04:28
↑ 23↓ 630.6%
24M
11:50/mi
4:16:18
↓ 821.3%
40K· 24.85 mi
12:07/mi
4:26:40
↓ 200.3%
25.2M
12:25/mi
4:30:57
↑ 13↓ 160.2%
Finish· 26.22 mi
10:44/mi
4:41:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:00
Pace10:04 /mi
2nd Half
Distance13.11 mi
Time2:29:53
Pace11:26 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3531:1510:0431:15
10:04
-
10K
6.21 mi12:18:121:00:529:4829:37
9:32
-0:32
15K
9.32 mi12:49:131:31:539:5131:01
9:59
+0:27
20K
12.43 mi13:21:562:04:3610:0232:43
10:32
+0:33
Half
13.11 mi13:29:202:12:0010:047:24
10:51
+0:19
25K
15.53 mi13:55:122:37:5210:1025:52
10:40
-0:11
30K
18.64 mi14:29:423:12:2210:1934:30
11:06
+0:26
20M
20.00 mi14:46:053:28:4510:2616:23
12:03
+0:57
21M
21.00 mi14:58:163:40:5610:3112:11
12:11
+0:08
35K
21.75 mi15:06:573:49:3710:338:41
11:36
-0:35
23M
23.00 mi15:21:484:04:2810:3814:51
11:52
+0:16
24M
24.00 mi15:33:384:16:1810:4111:50
11:50
-0:02
40K
24.85 mi15:44:004:26:4010:4410:22
12:07
+0:17
25.2M
25.20 mi15:48:174:30:5710:454:17
12:25
+0:18
Finish
26.22 mi15:59:134:41:5310:4610:56
10:44
-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

9:32 /mi

Average Pace

10:46 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:36

44% of race

Time at Steady Pace

1:18:42

28% of race

Time at Slower Pace

1:18:35

28% of race

Average Pace: 10:45 /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 mi11:48:3531:1510:0431:15
10:04
#25713
10K
6.21 mi12:18:121:00:529:4829:37
9:32
#24959
15K
9.32 mi12:49:131:31:539:5131:01
9:59
#24947
20K
12.43 mi13:21:562:04:3610:0232:43
10:32
#25074
Half
13.11 mi13:29:202:12:0010:047:24
10:51
#25161
25K
15.53 mi13:55:122:37:5210:1025:52
10:40
#25046
30K
18.64 mi14:29:423:12:2210:1934:30
11:06
#24906
20M
20.00 mi14:46:053:28:4510:2616:23
12:03
#24951
21M
21.00 mi14:58:163:40:5610:3112:11
12:11
#24899
35K
21.75 mi15:06:573:49:3710:338:41
11:36
#24933
23M
23.00 mi15:21:484:04:2810:3814:51
11:52
#24936
24M
24.00 mi15:33:384:16:1810:4111:50
11:50
#24971
40K
24.85 mi15:44:004:26:4010:4410:22
12:07
#24975
25.2M
25.20 mi15:48:174:30:5710:454:17
12:25
#24978
Finish
26.22 mi15:59:134:41:5310:4610:56
10:44
#24984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25713105941059424958(Top 88%)10192(Top 83%)10192(Top 186%)
10K6.21 mi3.10 mi24959+75410208+38610208+38624184(Top 85%)9794(Top 80%)9794(Top 179%)
15K9.32 mi3.11 mi24947+1210191+1710191+1724958(Top 88%)10192(Top 83%)10192(Top 186%)
20K12.43 mi3.11 mi25074-12710271-8010271-8025228(Top 89%)10392(Top 85%)10392(Top 190%)
Half13.11 mi0.68 mi25161-8710326-5510326-5526302(Top 93%)10995(Top 90%)10995(Top 201%)
25K15.53 mi2.42 mi25046+11510276+5010276+5024658(Top 87%)10107(Top 83%)10107(Top 185%)
30K18.64 mi3.11 mi24906+14010227+4910227+4924190(Top 85%)9969(Top 82%)9969(Top 182%)
20M20.00 mi1.36 mi24951-4510268-4110268-4125326(Top 89%)10654(Top 87%)10654(Top 195%)
21M21.00 mi1.00 mi24899+5210253+1510253+1523893(Top 84%)9975(Top 82%)9975(Top 182%)
35K21.75 mi0.75 mi24933-3410274-2110274-2125250(Top 89%)10716(Top 88%)10716(Top 196%)
23M23.00 mi1.25 mi24936-310299-2510299-2524869(Top 88%)10530(Top 86%)10530(Top 193%)
24M24.00 mi1.00 mi24971-3510325-2610325-2625444(Top 90%)10851(Top 89%)10851(Top 198%)
40K24.85 mi0.85 mi24975-410339-1410339-1425096(Top 88%)10719(Top 88%)10719(Top 196%)
25.2M25.20 mi0.35 mi24978-310342-310342-323995(Top 84%)10171(Top 83%)10171(Top 186%)
Finish26.22 mi1.02 mi24984-610349-710349-724770(Top 87%)10544(Top 86%)10544(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24958

Females

10192

F18-39

10192

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24184

Females

9794

F18-39

9794

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24958

Females

10192

F18-39

10192

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25228

Females

10392

F18-39

10392

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

26302

Females

10995

F18-39

10995

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24658

Females

10107

F18-39

10107

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24190

Females

9969

F18-39

9969

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25326

Females

10654

F18-39

10654

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23893

Females

9975

F18-39

9975

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25250

Females

10716

F18-39

10716

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24869

Females

10530

F18-39

10530

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25444

Females

10851

F18-39

10851

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25096

Females

10719

F18-39

10719

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23995

Females

10171

F18-39

10171

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24770

Females

10544

F18-39

10544

Passing Analysis

Category:
Athletes Passed
1654
Passed By
925
Net Change
+729
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25713
5K → 10K76511+754#25713#24959
10K → 15K135123+12#24959#24947
15K → 20K95222-127#24947#25074
20K → Half996-87#25074#25161
Half → 25K16348+115#25161#25046
25K → 30K19656+140#25046#24906
30K → 20M4388-45#24906#24951
20M → 21M8331+52#24951#24899
21M → 35K2357-34#24899#24933
35K → 23M4548-3#24933#24936
23M → 24M2257-35#24936#24971
24M → 40K3539-4#24971#24975
40K → 25.2M1417-3#24975#24978
25.2M → Finish2632-6#24978#24984
TOTALS1654925+729
📊

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