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BOSTON MARATHON 2025

Gabriella Lo

Bib: 13371•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 22%
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
6:58/mi
21:39
↑ 97↓ 3451.5%
10K· 6.21 mi
6:59/mi
43:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:05:29
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:28:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:33:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:51:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:15:38
↑ 181↓ 1480.2%
20M
7:55/mi
2:26:23
↑ 64↓ 500.2%
21M
8:11/mi
2:34:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:40:15
↑ 17↓ 861.7%
23M
7:53/mi
2:50:07
↑ 23↓ 630.6%
24M
7:32/mi
2:57:39
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:04:07
↓ 200.3%
25.2M
7:53/mi
3:06:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:09/mi
3:14:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:23
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:40:44
Pace7:41 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0721:396:5821:39
6:58
-
10K
6.21 mi11:09:4843:206:5821:41
6:59
+0:01
15K
9.32 mi11:31:571:05:297:0222:09
7:08
+0:09
20K
12.43 mi11:54:511:28:237:0722:54
7:22
+0:14
Half
13.11 mi11:59:511:33:237:075:00
7:20
-0:02
25K
15.53 mi12:17:591:51:317:1118:08
7:29
+0:09
30K
18.64 mi12:42:062:15:387:1724:07
7:46
+0:17
20M
20.00 mi12:52:512:26:237:1910:45
7:55
+0:09
21M
21.00 mi13:01:022:34:347:228:11
8:11
+0:16
35K
21.75 mi13:06:432:40:157:225:41
7:36
-0:35
23M
23.00 mi13:16:352:50:077:249:52
7:53
+0:17
24M
24.00 mi13:24:072:57:397:247:32
7:32
-0:21
40K
24.85 mi13:30:353:04:077:246:28
7:34
+0:02
25.2M
25.20 mi13:33:183:06:507:252:43
7:53
+0:19
Finish
26.22 mi13:40:353:14:077:257:17
7:09
-0:44

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

6:58 /mi

Average Pace

7:25 /mi

Slowest Pace

8:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:29

71% of race

Time at Steady Pace

55:38

29% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:48:0721:396:5821:39
6:58
#7597
10K
6.21 mi11:09:4843:206:5821:41
6:59
#7687
15K
9.32 mi11:31:571:05:297:0222:09
7:08
#7947
20K
12.43 mi11:54:511:28:237:0722:54
7:22
#8258
Half
13.11 mi11:59:511:33:237:075:00
7:20
#8334
25K
15.53 mi12:17:591:51:317:1118:08
7:29
#8507
30K
18.64 mi12:42:062:15:387:1724:07
7:46
#8643
20M
20.00 mi12:52:512:26:237:1910:45
7:55
#8698
21M
21.00 mi13:01:022:34:347:228:11
8:11
#8643
35K
21.75 mi13:06:432:40:157:225:41
7:36
#8634
23M
23.00 mi13:16:352:50:077:249:52
7:53
#8606
24M
24.00 mi13:24:072:57:397:247:32
7:32
#8545
40K
24.85 mi13:30:353:04:077:246:28
7:34
#8435
25.2M
25.20 mi13:33:183:06:507:252:43
7:53
#8351
Finish
26.22 mi13:40:353:14:077:257:17
7:09
#8263
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi75978468468552(Top 30%)1248(Top 10%)1248(Top 23%)
10K6.21 mi3.10 mi7687-90884-38884-387812(Top 28%)946(Top 8%)946(Top 17%)
15K9.32 mi3.11 mi7947-260979-95979-958552(Top 30%)1248(Top 10%)1248(Top 23%)
20K12.43 mi3.11 mi8258-3111129-1501129-1509654(Top 34%)1806(Top 15%)1806(Top 33%)
Half13.11 mi0.68 mi8334-761162-331162-3310286(Top 36%)2066(Top 17%)2066(Top 38%)
25K15.53 mi2.42 mi8507-1731247-851247-859799(Top 34%)2009(Top 16%)2009(Top 37%)
30K18.64 mi3.11 mi8643-1361354-1071354-1079635(Top 34%)2109(Top 17%)2109(Top 39%)
20M20.00 mi1.36 mi8698-551419-651419-659824(Top 35%)2349(Top 19%)2349(Top 43%)
21M21.00 mi1.00 mi8643+551430-111430-118494(Top 30%)1929(Top 16%)1929(Top 35%)
35K21.75 mi0.75 mi8634+91439-91439-99334(Top 33%)2275(Top 19%)2275(Top 42%)
23M23.00 mi1.25 mi8606+281475-361475-369160(Top 32%)2321(Top 19%)2321(Top 42%)
24M24.00 mi1.00 mi8545+611483-81483-87961(Top 28%)1846(Top 15%)1846(Top 34%)
40K24.85 mi0.85 mi8435+1101475+81475+87207(Top 25%)1637(Top 13%)1637(Top 30%)
25.2M25.20 mi0.35 mi8351+841459+161459+165398(Top 19%)1028(Top 8%)1028(Top 19%)
Finish26.22 mi1.02 mi8263+881457+21457+26716(Top 24%)1537(Top 13%)1537(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8552

Females

1248

F18-39

1248

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7812

Females

946

F18-39

946

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8552

Females

1248

F18-39

1248

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9654

Females

1806

F18-39

1806

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10286

Females

2066

F18-39

2066

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9799

Females

2009

F18-39

2009

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9635

Females

2109

F18-39

2109

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9824

Females

2349

F18-39

2349

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8494

Females

1929

F18-39

1929

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9334

Females

2275

F18-39

2275

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9160

Females

2321

F18-39

2321

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7961

Females

1846

F18-39

1846

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7207

Females

1637

F18-39

1637

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5398

Females

1028

F18-39

1028

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6716

Females

1537

F18-39

1537

Passing Analysis

Category:
Athletes Passed
1385
Passed By
2051
Net Change
-666
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7597
5K → 10K159249-90#7597#7687
10K → 15K68328-260#7687#7947
15K → 20K69380-311#7947#8258
20K → Half783-76#8258#8334
Half → 25K82255-173#8334#8507
25K → 30K166302-136#8507#8643
30K → 20M79134-55#8643#8698
20M → 21M12065+55#8698#8643
21M → 35K6152+9#8643#8634
35K → 23M134106+28#8634#8606
23M → 24M10443+61#8606#8545
24M → 40K13424+110#8545#8435
40K → 25.2M873+84#8435#8351
25.2M → Finish11527+88#8351#8263
TOTALS13852051-666
📊

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