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BOSTON MARATHON 2025

Laura Fang

Bib: 17561•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 30%
Division (F18-39)
#0 / 5469
Top 49%
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
7:42/mi
23:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:34
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:35:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:40:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:59:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:24:42
↑ 181↓ 1480.2%
20M
8:20/mi
2:36:01
↑ 64↓ 500.2%
21M
8:45/mi
2:44:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:50:51
↑ 17↓ 861.7%
23M
8:34/mi
3:01:34
↑ 23↓ 630.6%
24M
8:31/mi
3:10:05
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:17:33
↓ 200.3%
25.2M
9:17/mi
3:20:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:29:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:40
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:48:24
Pace8:16 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2323:557:4223:55
7:42
-
10K
6.21 mi11:38:2047:527:4223:57
7:43
+0:01
15K
9.32 mi12:02:021:11:347:4123:42
7:38
-0:05
20K
12.43 mi12:25:591:35:317:4123:57
7:43
+0:05
Half
13.11 mi12:31:081:40:407:415:09
7:33
-0:10
25K
15.53 mi12:49:591:59:317:4218:51
7:46
+0:13
30K
18.64 mi13:15:102:24:427:4625:11
8:06
+0:20
20M
20.00 mi13:26:292:36:017:4811:19
8:20
+0:14
21M
21.00 mi13:35:142:44:467:518:45
8:45
+0:25
35K
21.75 mi13:41:192:50:517:516:05
8:08
-0:37
23M
23.00 mi13:52:023:01:347:5410:43
8:34
+0:26
24M
24.00 mi14:00:333:10:057:558:31
8:31
-0:03
40K
24.85 mi14:08:013:17:337:577:28
8:44
+0:13
25.2M
25.20 mi14:11:133:20:457:583:12
9:17
+0:33
Finish
26.22 mi14:19:323:29:047:598:19
8:10
-1:07

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

7:33 /mi

Average Pace

7:59 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:31

57% of race

Time at Steady Pace

50:54

24% of race

Time at Slower Pace

38:39

18% of race

Average Pace: 7:58 /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 mi11:14:2323:557:4223:55
7:42
#13968
10K
6.21 mi11:38:2047:527:4223:57
7:43
#13936
15K
9.32 mi12:02:021:11:347:4123:42
7:38
#13568
20K
12.43 mi12:25:591:35:317:4123:57
7:43
#13252
Half
13.11 mi12:31:081:40:407:415:09
7:33
#13184
25K
15.53 mi12:49:591:59:317:4218:51
7:46
#12980
30K
18.64 mi13:15:102:24:427:4625:11
8:06
#12759
20M
20.00 mi13:26:292:36:017:4811:19
8:20
#12738
21M
21.00 mi13:35:142:44:467:518:45
8:45
#12664
35K
21.75 mi13:41:192:50:517:516:05
8:08
#12676
23M
23.00 mi13:52:023:01:347:5410:43
8:34
#12720
24M
24.00 mi14:00:333:10:057:558:31
8:31
#12803
40K
24.85 mi14:08:013:17:337:577:28
8:44
#12879
25.2M
25.20 mi14:11:133:20:457:583:12
9:17
#12887
Finish
26.22 mi14:19:323:29:047:598:19
8:10
#12936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139683889388912885(Top 45%)3382(Top 28%)3382(Top 62%)
10K6.21 mi3.10 mi13936+323899-103899-1013980(Top 49%)3949(Top 32%)3949(Top 72%)
15K9.32 mi3.11 mi13568+3683727+1723727+17212885(Top 45%)3382(Top 28%)3382(Top 62%)
20K12.43 mi3.11 mi13252+3163581+1463581+14612516(Top 44%)3286(Top 27%)3286(Top 60%)
Half13.11 mi0.68 mi13184+683550+313550+3112222(Top 43%)3083(Top 25%)3083(Top 56%)
25K15.53 mi2.42 mi12980+2043464+863464+8612163(Top 43%)3205(Top 26%)3205(Top 59%)
30K18.64 mi3.11 mi12759+2213400+643400+6412155(Top 43%)3369(Top 28%)3369(Top 62%)
20M20.00 mi1.36 mi12738+213436-363436-3612685(Top 45%)3795(Top 31%)3795(Top 69%)
21M21.00 mi1.00 mi12664+743428+83428+812015(Top 42%)3608(Top 30%)3608(Top 66%)
35K21.75 mi0.75 mi12676-123461-333461-3313162(Top 46%)4246(Top 35%)4246(Top 78%)
23M23.00 mi1.25 mi12720-443514-533514-5313676(Top 48%)4627(Top 38%)4627(Top 85%)
24M24.00 mi1.00 mi12803-833591-773591-7714622(Top 51%)5158(Top 42%)5158(Top 94%)
40K24.85 mi0.85 mi12879-763667-763667-7614817(Top 52%)5414(Top 44%)5414(Top 99%)
25.2M25.20 mi0.35 mi12887-83683-163683-1613380(Top 47%)4689(Top 38%)4689(Top 86%)
Finish26.22 mi1.02 mi12936-493726-433726-4314023(Top 49%)4954(Top 41%)4954(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12885

Females

3382

F18-39

3382

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13980

Females

3949

F18-39

3949

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12885

Females

3382

F18-39

3382

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12516

Females

3286

F18-39

3286

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12222

Females

3083

F18-39

3083

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12163

Females

3205

F18-39

3205

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12155

Females

3369

F18-39

3369

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12685

Females

3795

F18-39

3795

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

12015

Females

3608

F18-39

3608

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13162

Females

4246

F18-39

4246

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13676

Females

4627

F18-39

4627

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14622

Females

5158

F18-39

5158

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14817

Females

5414

F18-39

5414

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13380

Females

4689

F18-39

4689

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

14023

Females

4954

F18-39

4954

Passing Analysis

Category:
Athletes Passed
2361
Passed By
1329
Net Change
+1032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13968
5K → 10K284252+32#13968#13936
10K → 15K41850+368#13936#13568
15K → 20K35539+316#13568#13252
20K → Half779+68#13252#13184
Half → 25K26258+204#13184#12980
25K → 30K336115+221#12980#12759
30K → 20M130109+21#12759#12738
20M → 21M14975+74#12738#12664
21M → 35K6274-12#12664#12676
35K → 23M95139-44#12676#12720
23M → 24M53136-83#12720#12803
24M → 40K48124-76#12803#12879
40K → 25.2M3038-8#12879#12887
25.2M → Finish62111-49#12887#12936
TOTALS23611329+1032
📊

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