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BOSTON MARATHON 2025

Karen Harbut

Bib: 24799•F

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 36%
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
8:54/mi
27:40
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
55:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:55/mi
1:23:14
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:51:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:56:59
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:18:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:13/mi
2:47:09
↑ 181↓ 1480.2%
20M
9:10/mi
2:59:36
↑ 64↓ 500.2%
21M
9:37/mi
3:09:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:15:41
↑ 17↓ 861.7%
23M
8:54/mi
3:26:50
↑ 23↓ 630.6%
24M
8:42/mi
3:35:32
↓ 821.3%
40K· 24.85 mi
8:53/mi
3:43:08
↓ 200.3%
25.2M
9:49/mi
3:46:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:55:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:56:59
Pace8:55 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:58:07
Pace9:01 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:0927:408:5427:40
8:54
-
10K
6.21 mi11:57:0055:318:5627:51
8:58
+0:04
15K
9.32 mi12:24:431:23:148:5627:43
8:55
-0:03
20K
12.43 mi12:52:301:51:018:5627:47
8:57
+0:02
Half
13.11 mi12:58:281:56:598:555:58
8:45
-0:12
25K
15.53 mi13:20:012:18:328:5521:33
8:53
+0:08
30K
18.64 mi13:48:382:47:098:5828:37
9:13
+0:20
20M
20.00 mi14:01:052:59:368:5912:27
9:10
-0:03
21M
21.00 mi14:10:423:09:139:019:37
9:37
+0:27
35K
21.75 mi14:17:103:15:419:006:28
8:39
-0:58
23M
23.00 mi14:28:193:26:509:0011:09
8:54
+0:15
24M
24.00 mi14:37:013:35:328:598:42
8:42
-0:12
40K
24.85 mi14:44:373:43:088:597:36
8:53
+0:11
25.2M
25.20 mi14:48:003:46:318:593:23
9:49
+0:56
Finish
26.22 mi14:56:353:55:068:588:35
8:25
-1:24

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

8:25 /mi

Average Pace

8:58 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:06

94% of race

Time at Steady Pace

13:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:29:0927:408:5427:40
8:54
#22018
10K
6.21 mi11:57:0055:318:5627:51
8:58
#22134
15K
9.32 mi12:24:431:23:148:5627:43
8:55
#21962
20K
12.43 mi12:52:301:51:018:5627:47
8:57
#21625
Half
13.11 mi12:58:281:56:598:555:58
8:45
#21571
25K
15.53 mi13:20:012:18:328:5521:33
8:53
#21190
30K
18.64 mi13:48:382:47:098:5828:37
9:13
#20715
20M
20.00 mi14:01:052:59:368:5912:27
9:10
#20464
21M
21.00 mi14:10:423:09:139:019:37
9:37
#20251
35K
21.75 mi14:17:103:15:419:006:28
8:39
#20109
23M
23.00 mi14:28:193:26:509:0011:09
8:54
#19872
24M
24.00 mi14:37:013:35:328:598:42
8:42
#19698
40K
24.85 mi14:44:373:43:088:597:36
8:53
#19552
25.2M
25.20 mi14:48:003:46:318:593:23
9:49
#19499
Finish
26.22 mi14:56:353:55:068:588:35
8:25
#19359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi220188633863321669(Top 76%)8361(Top 68%)8361(Top 841%)
10K6.21 mi3.10 mi22134-1168687-548687-5422228(Top 78%)8724(Top 71%)8724(Top 878%)
15K9.32 mi3.11 mi21962+1728581+1068581+10621669(Top 76%)8361(Top 68%)8361(Top 841%)
20K12.43 mi3.11 mi21625+3378393+1888393+18820687(Top 73%)7883(Top 64%)7883(Top 793%)
Half13.11 mi0.68 mi21571+548362+318362+3120662(Top 73%)7847(Top 64%)7847(Top 789%)
25K15.53 mi2.42 mi21190+3818149+2138149+21319382(Top 68%)7195(Top 59%)7195(Top 724%)
30K18.64 mi3.11 mi20715+4757934+2157934+21518693(Top 66%)6949(Top 57%)6949(Top 699%)
20M20.00 mi1.36 mi20464+2517815+1197815+11917619(Top 62%)6483(Top 53%)6483(Top 652%)
21M21.00 mi1.00 mi20251+2137720+957720+9516668(Top 59%)6078(Top 50%)6078(Top 611%)
35K21.75 mi0.75 mi20109+1427651+697651+6916409(Top 58%)6029(Top 49%)6029(Top 607%)
23M23.00 mi1.25 mi19872+2377550+1017550+10115746(Top 55%)5755(Top 47%)5755(Top 579%)
24M24.00 mi1.00 mi19698+1747479+717479+7115802(Top 56%)5820(Top 48%)5820(Top 586%)
40K24.85 mi0.85 mi19552+1467407+727407+7215745(Top 55%)5929(Top 48%)5929(Top 596%)
25.2M25.20 mi0.35 mi19499+537388+197388+1916239(Top 57%)6224(Top 51%)6224(Top 626%)
Finish26.22 mi1.02 mi19359+1407330+587330+5815781(Top 56%)5913(Top 48%)5913(Top 595%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21669

Females

8361

F55-59

8361

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22228

Females

8724

F55-59

8724

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21669

Females

8361

F55-59

8361

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20687

Females

7883

F55-59

7883

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20662

Females

7847

F55-59

7847

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19382

Females

7195

F55-59

7195

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18693

Females

6949

F55-59

6949

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17619

Females

6483

F55-59

6483

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16668

Females

6078

F55-59

6078

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16409

Females

6029

F55-59

6029

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15746

Females

5755

F55-59

5755

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15802

Females

5820

F55-59

5820

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15745

Females

5929

F55-59

5929

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16239

Females

6224

F55-59

6224

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15781

Females

5913

F55-59

5913

Passing Analysis

Category:
Athletes Passed
3229
Passed By
570
Net Change
+2659
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22018
5K → 10K211327-116#22018#22134
10K → 15K276104+172#22134#21962
15K → 20K38952+337#21962#21625
20K → Half628+54#21625#21571
Half → 25K39312+381#21571#21190
25K → 30K49520+475#21190#20715
30K → 20M2587+251#20715#20464
20M → 21M2218+213#20464#20251
21M → 35K1453+142#20251#20109
35K → 23M2436+237#20109#19872
23M → 24M1784+174#19872#19698
24M → 40K1493+146#19698#19552
40K → 25.2M596+53#19552#19499
25.2M → Finish15010+140#19499#19359
TOTALS3229570+2659
📊

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