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BOSTON MARATHON 2025

Grace Harris

Bib: 16120•F

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0:00
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 32%
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
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
46:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:46
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:33:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:38:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:56:21
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:20:58
↑ 181↓ 1480.2%
20M
7:59/mi
2:31:49
↑ 64↓ 500.2%
21M
8:31/mi
2:40:20
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:46:06
↑ 17↓ 861.7%
23M
7:38/mi
2:55:39
↑ 23↓ 630.6%
24M
7:29/mi
3:03:08
↓ 821.3%
40K· 24.85 mi
7:40/mi
3:09:41
↓ 200.3%
25.2M
8:19/mi
3:12:33
↑ 13↓ 160.2%
Finish· 26.22 mi
7:08/mi
3:19:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:03
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:41:46
Pace7:46 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1523:197:3023:19
7:30
-
10K
6.21 mi11:19:2846:327:2923:13
7:28
-0:02
15K
9.32 mi11:42:421:09:467:2923:14
7:29
+0:01
20K
12.43 mi12:06:021:33:067:2923:20
7:31
+0:02
Half
13.11 mi12:10:591:38:037:294:57
7:15
-0:16
25K
15.53 mi12:29:171:56:217:2918:18
7:33
+0:18
30K
18.64 mi12:53:542:20:587:3424:37
7:55
+0:22
20M
20.00 mi13:04:452:31:497:3510:51
7:59
+0:04
21M
21.00 mi13:13:162:40:207:388:31
8:31
+0:32
35K
21.75 mi13:19:022:46:067:385:46
7:42
-0:49
23M
23.00 mi13:28:352:55:397:389:33
7:38
-0:04
24M
24.00 mi13:36:043:03:087:387:29
7:29
-0:09
40K
24.85 mi13:42:373:09:417:386:33
7:40
+0:11
25.2M
25.20 mi13:45:293:12:337:382:52
8:19
+0:39
Finish
26.22 mi13:52:453:19:497:387:16
7:08
-1:11

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

7:08 /mi

Average Pace

7:38 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:58

77% of race

Time at Steady Pace

38:20

19% of race

Time at Slower Pace

8:31

4% of race

Average Pace: 7:37 /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 mi10:56:1523:197:3023:19
7:30
#12300
10K
6.21 mi11:19:2846:327:2923:13
7:28
#12031
15K
9.32 mi11:42:421:09:467:2923:14
7:29
#11863
20K
12.43 mi12:06:021:33:067:2923:20
7:31
#11568
Half
13.11 mi12:10:591:38:037:294:57
7:15
#11471
25K
15.53 mi12:29:171:56:217:2918:18
7:33
#11245
30K
18.64 mi12:53:542:20:587:3424:37
7:55
#11136
20M
20.00 mi13:04:452:31:497:3510:51
7:59
#11009
21M
21.00 mi13:13:162:40:207:388:31
8:31
#10948
35K
21.75 mi13:19:022:46:067:385:46
7:42
#10901
23M
23.00 mi13:28:352:55:397:389:33
7:38
#10641
24M
24.00 mi13:36:043:03:087:387:29
7:29
#10480
40K
24.85 mi13:42:373:09:417:386:33
7:40
#10332
25.2M
25.20 mi13:45:293:12:337:382:52
8:19
#10277
Finish
26.22 mi13:52:453:19:497:387:16
7:08
#10085
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123002961296111588(Top 41%)2680(Top 22%)2680(Top 49%)
10K6.21 mi3.10 mi12031+2692826+1352826+13511851(Top 42%)2734(Top 22%)2734(Top 50%)
15K9.32 mi3.11 mi11863+1682748+782748+7811588(Top 41%)2680(Top 22%)2680(Top 49%)
20K12.43 mi3.11 mi11568+2952650+982650+9810859(Top 38%)2398(Top 20%)2398(Top 44%)
Half13.11 mi0.68 mi11471+972594+562594+569692(Top 34%)1820(Top 15%)1820(Top 33%)
25K15.53 mi2.42 mi11245+2262512+822512+8210365(Top 36%)2269(Top 19%)2269(Top 41%)
30K18.64 mi3.11 mi11136+1092535-232535-2310819(Top 38%)2692(Top 22%)2692(Top 49%)
20M20.00 mi1.36 mi11009+1272517+182517+1810358(Top 36%)2609(Top 21%)2609(Top 48%)
21M21.00 mi1.00 mi10948+612519-22519-210591(Top 37%)2894(Top 24%)2894(Top 53%)
35K21.75 mi0.75 mi10901+472524-52524-510158(Top 36%)2676(Top 22%)2676(Top 49%)
23M23.00 mi1.25 mi10641+2602423+1012423+1017463(Top 26%)1603(Top 13%)1603(Top 29%)
24M24.00 mi1.00 mi10480+1612376+472376+477610(Top 27%)1716(Top 14%)1716(Top 31%)
40K24.85 mi0.85 mi10332+1482339+372339+377870(Top 28%)1935(Top 16%)1935(Top 35%)
25.2M25.20 mi0.35 mi10277+552331+82331+87789(Top 27%)1978(Top 16%)1978(Top 36%)
Finish26.22 mi1.02 mi10085+1922262+692262+696623(Top 23%)1509(Top 12%)1509(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11588

Females

2680

F18-39

2680

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11851

Females

2734

F18-39

2734

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11588

Females

2680

F18-39

2680

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10859

Females

2398

F18-39

2398

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9692

Females

1820

F18-39

1820

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10365

Females

2269

F18-39

2269

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10819

Females

2692

F18-39

2692

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10358

Females

2609

F18-39

2609

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10591

Females

2894

F18-39

2894

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10158

Females

2676

F18-39

2676

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7463

Females

1603

F18-39

1603

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7610

Females

1716

F18-39

1716

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7870

Females

1935

F18-39

1935

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7789

Females

1978

F18-39

1978

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6623

Females

1509

F18-39

1509

Passing Analysis

Category:
Athletes Passed
2950
Passed By
735
Net Change
+2215
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12300
5K → 10K412143+269#12300#12031
10K → 15K26698+168#12031#11863
15K → 20K36166+295#11863#11568
20K → Half1003+97#11568#11471
Half → 25K27751+226#11471#11245
25K → 30K281172+109#11245#11136
30K → 20M18053+127#11136#11009
20M → 21M12463+61#11009#10948
21M → 35K8033+47#10948#10901
35K → 23M2677+260#10901#10641
23M → 24M17413+161#10641#10480
24M → 40K16113+148#10480#10332
40K → 25.2M6510+55#10332#10277
25.2M → Finish20210+192#10277#10085
TOTALS2950735+2215
📊

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