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BOSTON MARATHON 2025

Sarah Tarr

Bib: 15586•F

TN

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
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
7:53/mi
24:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
48:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:13:01
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:37:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:42:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:02:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:29:36
↑ 181↓ 1480.2%
20M
8:56/mi
2:41:44
↑ 64↓ 500.2%
21M
9:11/mi
2:50:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
2:57:24
↑ 17↓ 861.7%
23M
8:51/mi
3:08:29
↑ 23↓ 630.6%
24M
8:47/mi
3:17:16
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:24:50
↓ 200.3%
25.2M
9:40/mi
3:28:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:36:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:34
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:54:06
Pace8:42 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0024:307:5324:30
7:53
-
10K
6.21 mi11:21:2048:507:5224:20
7:50
-0:03
15K
9.32 mi11:45:311:13:017:5024:11
7:47
-0:03
20K
12.43 mi12:09:441:37:147:4924:13
7:48
+0:01
Half
13.11 mi12:15:041:42:347:495:20
7:49
+0:01
25K
15.53 mi12:34:482:02:187:5219:44
8:08
+0:19
30K
18.64 mi13:02:062:29:368:0227:18
8:47
+0:39
20M
20.00 mi13:14:142:41:448:0512:08
8:56
+0:09
21M
21.00 mi13:23:252:50:558:089:11
9:11
+0:15
35K
21.75 mi13:29:542:57:248:096:29
8:40
-0:31
23M
23.00 mi13:40:593:08:298:1211:05
8:51
+0:11
24M
24.00 mi13:49:463:17:168:138:47
8:47
-0:04
40K
24.85 mi13:57:203:24:508:147:34
8:51
+0:04
25.2M
25.20 mi14:00:403:28:108:163:20
9:40
+0:49
Finish
26.22 mi14:09:103:36:408:168:30
8:20
-1:20

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

7:47 /mi

Average Pace

8:16 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:48

60% of race

Time at Steady Pace

1:13:21

34% of race

Time at Slower Pace

12:31

6% of race

Average Pace: 8:16 /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 mi10:57:0024:307:5324:30
7:53
#15560
10K
6.21 mi11:21:2048:507:5224:20
7:50
#15335
15K
9.32 mi11:45:311:13:017:5024:11
7:47
#14931
20K
12.43 mi12:09:441:37:147:4924:13
7:48
#14450
Half
13.11 mi12:15:041:42:347:495:20
7:49
#14433
25K
15.53 mi12:34:482:02:187:5219:44
8:08
#14501
30K
18.64 mi13:02:062:29:368:0227:18
8:47
#14929
20M
20.00 mi13:14:142:41:448:0512:08
8:56
#15035
21M
21.00 mi13:23:252:50:558:089:11
9:11
#14954
35K
21.75 mi13:29:542:57:248:096:29
8:40
#15004
23M
23.00 mi13:40:593:08:298:1211:05
8:51
#14985
24M
24.00 mi13:49:463:17:168:138:47
8:47
#15023
40K
24.85 mi13:57:203:24:508:147:34
8:51
#15049
25.2M
25.20 mi14:00:403:28:108:163:20
9:40
#15038
Finish
26.22 mi14:09:103:36:408:168:30
8:20
#15016
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi155604867486714252(Top 50%)4175(Top 34%)4175(Top 76%)
10K6.21 mi3.10 mi15335+2254741+1264741+12615128(Top 53%)4616(Top 38%)4616(Top 84%)
15K9.32 mi3.11 mi14931+4044516+2254516+22514252(Top 50%)4175(Top 34%)4175(Top 76%)
20K12.43 mi3.11 mi14450+4814262+2544262+25413248(Top 47%)3687(Top 30%)3687(Top 67%)
Half13.11 mi0.68 mi14433+174255+74255+714483(Top 51%)4348(Top 36%)4348(Top 80%)
25K15.53 mi2.42 mi14501-684338-834338-8314916(Top 53%)4704(Top 38%)4704(Top 86%)
30K18.64 mi3.11 mi14929-4284631-2934631-29316519(Top 58%)5747(Top 47%)5747(Top 105%)
20M20.00 mi1.36 mi15035-1064724-934724-9316414(Top 58%)5827(Top 48%)5827(Top 107%)
21M21.00 mi1.00 mi14954+814695+294695+2914558(Top 51%)4924(Top 40%)4924(Top 90%)
35K21.75 mi0.75 mi15004-504740-454740-4516488(Top 58%)6047(Top 49%)6047(Top 111%)
23M23.00 mi1.25 mi14985+194758-184758-1815412(Top 54%)5546(Top 45%)5546(Top 101%)
24M24.00 mi1.00 mi15023-384816-584816-5816235(Top 57%)6061(Top 50%)6061(Top 111%)
40K24.85 mi0.85 mi15049-264867-514867-5115483(Top 55%)5788(Top 47%)5788(Top 106%)
25.2M25.20 mi0.35 mi15038+114873-64873-615480(Top 54%)5804(Top 47%)5804(Top 106%)
Finish26.22 mi1.02 mi15016+224883-104883-1015207(Top 54%)5592(Top 46%)5592(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14252

Females

4175

F18-39

4175

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15128

Females

4616

F18-39

4616

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14252

Females

4175

F18-39

4175

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13248

Females

3687

F18-39

3687

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14483

Females

4348

F18-39

4348

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14916

Females

4704

F18-39

4704

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16519

Females

5747

F18-39

5747

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16414

Females

5827

F18-39

5827

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14558

Females

4924

F18-39

4924

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16488

Females

6047

F18-39

6047

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15412

Females

5546

F18-39

5546

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16235

Females

6061

F18-39

6061

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15483

Females

5788

F18-39

5788

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15480

Females

5804

F18-39

5804

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15207

Females

5592

F18-39

5592

Passing Analysis

Category:
Athletes Passed
2387
Passed By
1843
Net Change
+544
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15560
5K → 10K432207+225#15560#15335
10K → 15K45551+404#15335#14931
15K → 20K49817+481#14931#14450
20K → Half4831+17#14450#14433
Half → 25K155223-68#14433#14501
25K → 30K133561-428#14501#14929
30K → 20M96202-106#14929#15035
20M → 21M15372+81#15035#14954
21M → 35K4191-50#14954#15004
35K → 23M120101+19#15004#14985
23M → 24M76114-38#14985#15023
24M → 40K5884-26#15023#15049
40K → 25.2M4332+11#15049#15038
25.2M → Finish7957+22#15038#15016
TOTALS23871843+544
📊

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