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BOSTON MARATHON 2025

Anna Harrington

Bib: 25741•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

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
10:54/mi
33:52
↑ 97↓ 3451.5%
10K· 6.21 mi
10:52/mi
1:07:38
↑ 79↓ 1380.4%
15K· 9.32 mi
11:52/mi
1:44:29
↑ 67↓ 78
20K· 12.43 mi
11:20/mi
2:19:41
↑ 106↓ 860.1%
Half· 13.11 mi
10:24/mi
2:26:47
↑ 19↓ 370.5%
25K· 15.53 mi
11:37/mi
2:54:57
↑ 66↓ 880.2%
30K· 18.64 mi
13:09/mi
3:35:47
↑ 181↓ 1480.2%
20M
12:14/mi
3:52:24
↑ 64↓ 500.2%
21M
12:51/mi
4:05:15
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
4:12:46
↑ 17↓ 861.7%
23M
12:17/mi
4:28:09
↑ 23↓ 630.6%
24M
13:28/mi
4:41:37
↓ 821.3%
40K· 24.85 mi
10:37/mi
4:50:42
↓ 200.3%
25.2M
12:40/mi
4:55:04
↑ 13↓ 160.2%
Finish· 26.22 mi
9:47/mi
5:05:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:47
Pace11:12 /mi
2nd Half
Distance13.11 mi
Time2:38:15
Pace12:04 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1633:5210:5433:52
10:54
-
10K
6.21 mi12:28:021:07:3810:5333:46
10:52
-0:02
15K
9.32 mi13:04:531:44:2911:1336:51
11:52
+1:00
20K
12.43 mi13:40:052:19:4111:1435:12
11:20
-0:32
Half
13.11 mi13:47:112:26:4711:127:06
10:24
-0:56
25K
15.53 mi14:15:212:54:5711:1628:10
11:37
+1:13
30K
18.64 mi14:56:113:35:4711:3540:50
13:09
+1:32
20M
20.00 mi15:12:483:52:2411:3716:37
12:14
-0:55
21M
21.00 mi15:25:394:05:1511:4112:51
12:51
+0:37
35K
21.75 mi15:33:104:12:4611:377:31
10:03
-2:48
23M
23.00 mi15:48:334:28:0911:4015:23
12:17
+2:14
24M
24.00 mi16:02:014:41:3711:4413:28
13:28
+1:11
40K
24.85 mi16:11:064:50:4211:429:05
10:37
-2:51
25.2M
25.20 mi16:15:284:55:0411:434:22
12:40
+2:03
Finish
26.22 mi16:25:265:05:0211:399:58
9:47
-2:53

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

9:47 /mi

Average Pace

11:39 /mi

Slowest Pace

13:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:18

33% of race

Time at Steady Pace

1:40:13

33% of race

Time at Slower Pace

1:43:31

34% of race

Average Pace: 11:38 /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 mi11:54:1633:5210:5433:52
10:54
#27433
10K
6.21 mi12:28:021:07:3810:5333:46
10:52
#27170
15K
9.32 mi13:04:531:44:2911:1336:51
11:52
#27329
20K
12.43 mi13:40:052:19:4111:1435:12
11:20
#27081
Half
13.11 mi13:47:112:26:4711:127:06
10:24
#27014
25K
15.53 mi14:15:212:54:5711:1628:10
11:37
#26852
30K
18.64 mi14:56:113:35:4711:3540:50
13:09
#26874
20M
20.00 mi15:12:483:52:2411:3716:37
12:14
#26799
21M
21.00 mi15:25:394:05:1511:4112:51
12:51
#26716
35K
21.75 mi15:33:104:12:4611:377:31
10:03
#26598
23M
23.00 mi15:48:334:28:0911:4015:23
12:17
#26543
24M
24.00 mi16:02:014:41:3711:4413:28
13:28
#26612
40K
24.85 mi16:11:064:50:4211:429:05
10:37
#26523
25.2M
25.20 mi16:15:284:55:0411:434:22
12:40
#26494
Finish
26.22 mi16:25:265:05:0211:399:58
9:47
#26379
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27433115981159827535(Top 97%)11708(Top 96%)11708(Top 214%)
10K6.21 mi3.10 mi27170+26311462+13611462+13626875(Top 95%)11292(Top 92%)11292(Top 206%)
15K9.32 mi3.11 mi27329-15911549-8711549-8727535(Top 97%)11708(Top 96%)11708(Top 214%)
20K12.43 mi3.11 mi27081+24811421+12811421+12826427(Top 93%)11051(Top 90%)11051(Top 202%)
Half13.11 mi0.68 mi27014+6711383+3811383+3825628(Top 90%)10622(Top 87%)10622(Top 194%)
25K15.53 mi2.42 mi26852+16211290+9311290+9325996(Top 92%)10862(Top 89%)10862(Top 199%)
30K18.64 mi3.11 mi26874-2211326-3611326-3626813(Top 94%)11389(Top 93%)11389(Top 208%)
20M20.00 mi1.36 mi26799+7511288+3811288+3825566(Top 90%)10788(Top 88%)10788(Top 197%)
21M21.00 mi1.00 mi26716+8311248+4011248+4024855(Top 88%)10497(Top 86%)10497(Top 192%)
35K21.75 mi0.75 mi26598+11811192+5611192+5621997(Top 77%)9043(Top 74%)9043(Top 165%)
23M23.00 mi1.25 mi26543+5511177+1511177+1525516(Top 90%)10865(Top 89%)10865(Top 199%)
24M24.00 mi1.00 mi26612-6911221-4411221-4427282(Top 96%)11794(Top 96%)11794(Top 216%)
40K24.85 mi0.85 mi26523+8911170+5111170+5122232(Top 78%)9333(Top 76%)9333(Top 171%)
25.2M25.20 mi0.35 mi26494+2911157+1311157+1324452(Top 86%)10410(Top 85%)10410(Top 190%)
Finish26.22 mi1.02 mi26379+11511102+5511102+5522174(Top 78%)9261(Top 76%)9261(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27535

Females

11708

F18-39

11708

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

26875

Females

11292

F18-39

11292

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27535

Females

11708

F18-39

11708

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

26427

Females

11051

F18-39

11051

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25628

Females

10622

F18-39

10622

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

25996

Females

10862

F18-39

10862

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

26813

Females

11389

F18-39

11389

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25566

Females

10788

F18-39

10788

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

24855

Females

10497

F18-39

10497

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

21997

Females

9043

F18-39

9043

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25516

Females

10865

F18-39

10865

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27282

Females

11794

F18-39

11794

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22232

Females

9333

F18-39

9333

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24452

Females

10410

F18-39

10410

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22174

Females

9261

F18-39

9261

Passing Analysis

Category:
Athletes Passed
1542
Passed By
488
Net Change
+1054
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27433
5K → 10K29734+263#27433#27170
10K → 15K60219-159#27170#27329
15K → 20K2557+248#27329#27081
20K → Half692+67#27081#27014
Half → 25K1708+162#27014#26852
25K → 30K78100-22#26852#26874
30K → 20M827+75#26874#26799
20M → 21M896+83#26799#26716
21M → 35K1180+118#26716#26598
35K → 23M7823+55#26598#26543
23M → 24M978-69#26543#26612
24M → 40K912+89#26612#26523
40K → 25.2M312+29#26523#26494
25.2M → Finish1150+115#26494#26379
TOTALS1542488+1054
📊

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