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BOSTON MARATHON 2025

Fangdi Yu

Bib: 23654•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F50-54)
#0 / 1303
Top 36%
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
8:30/mi
26:23
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
52:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:19:28
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:45:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:51:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:36/mi
2:12:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:44/mi
2:39:40
↑ 181↓ 1480.2%
20M
8:48/mi
2:51:38
↑ 64↓ 500.2%
21M
9:28/mi
3:01:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:07:24
↑ 17↓ 861.7%
23M
8:48/mi
3:18:25
↑ 23↓ 630.6%
24M
8:38/mi
3:27:03
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:34:35
↓ 200.3%
25.2M
9:43/mi
3:37:56
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:46:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:42
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time1:54:57
Pace8:46 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:3126:238:3026:23
8:30
-
10K
6.21 mi11:51:5552:478:3026:24
8:30
0:00
15K
9.32 mi12:18:361:19:288:3226:41
8:35
+0:05
20K
12.43 mi12:45:061:45:588:3226:30
8:32
-0:03
Half
13.11 mi12:50:501:51:428:315:44
8:24
-0:08
25K
15.53 mi13:11:402:12:328:3220:50
8:36
+0:12
30K
18.64 mi13:38:482:39:408:3427:08
8:44
+0:08
20M
20.00 mi13:50:462:51:388:3511:58
8:48
+0:04
21M
21.00 mi14:00:143:01:068:379:28
9:28
+0:40
35K
21.75 mi14:06:323:07:248:376:18
8:25
-1:03
23M
23.00 mi14:17:333:18:258:3811:01
8:48
+0:23
24M
24.00 mi14:26:113:27:038:388:38
8:38
-0:10
40K
24.85 mi14:33:433:34:358:387:32
8:49
+0:11
25.2M
25.20 mi14:37:043:37:568:393:21
9:43
+0:54
Finish
26.22 mi14:45:473:46:398:398:43
8:33
-1:10

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

8:24 /mi

Average Pace

8:39 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:50

94% of race

Time at Steady Pace

12:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:39 /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 mi11:25:3126:238:3026:23
8:30
#19838
10K
6.21 mi11:51:5552:478:3026:24
8:30
#19807
15K
9.32 mi12:18:361:19:288:3226:41
8:35
#19832
20K
12.43 mi12:45:061:45:588:3226:30
8:32
#19433
Half
13.11 mi12:50:501:51:428:315:44
8:24
#19397
25K
15.53 mi13:11:402:12:328:3220:50
8:36
#19105
30K
18.64 mi13:38:482:39:408:3427:08
8:44
#18538
20M
20.00 mi13:50:462:51:388:3511:58
8:48
#18317
21M
21.00 mi14:00:143:01:068:379:28
9:28
#18161
35K
21.75 mi14:06:323:07:248:376:18
8:25
#18034
23M
23.00 mi14:17:333:18:258:3811:01
8:48
#17838
24M
24.00 mi14:26:113:27:038:388:38
8:38
#17694
40K
24.85 mi14:33:433:34:358:387:32
8:49
#17601
25.2M
25.20 mi14:37:043:37:568:393:21
9:43
#17561
Finish
26.22 mi14:45:473:46:398:398:43
8:33
#17523
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198387413741319868(Top 70%)7369(Top 60%)7369(Top 566%)
10K6.21 mi3.10 mi19807+317359+547359+5419791(Top 70%)7353(Top 60%)7353(Top 564%)
15K9.32 mi3.11 mi19832-257365-67365-619868(Top 70%)7369(Top 60%)7369(Top 566%)
20K12.43 mi3.11 mi19433+3997145+2207145+22018444(Top 65%)6594(Top 54%)6594(Top 506%)
Half13.11 mi0.68 mi19397+367131+147131+1418639(Top 66%)6698(Top 55%)6698(Top 514%)
25K15.53 mi2.42 mi19105+2926972+1596972+15917775(Top 63%)6295(Top 51%)6295(Top 483%)
30K18.64 mi3.11 mi18538+5676678+2946678+29416207(Top 57%)5594(Top 46%)5594(Top 429%)
20M20.00 mi1.36 mi18317+2216593+856593+8515731(Top 55%)5444(Top 45%)5444(Top 418%)
21M21.00 mi1.00 mi18161+1566533+606533+6015954(Top 56%)5687(Top 47%)5687(Top 436%)
35K21.75 mi0.75 mi18034+1276464+696464+6915061(Top 53%)5278(Top 43%)5278(Top 405%)
23M23.00 mi1.25 mi17838+1966404+606404+6015134(Top 53%)5413(Top 44%)5413(Top 415%)
24M24.00 mi1.00 mi17694+1446359+456359+4515382(Top 54%)5593(Top 46%)5593(Top 429%)
40K24.85 mi0.85 mi17601+936336+236336+2315287(Top 54%)5689(Top 47%)5689(Top 437%)
25.2M25.20 mi0.35 mi17561+406326+106326+1015760(Top 55%)5971(Top 49%)5971(Top 458%)
Finish26.22 mi1.02 mi17523+386326632616599(Top 58%)6357(Top 52%)6357(Top 488%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19868

Females

7369

F50-54

7369

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19791

Females

7353

F50-54

7353

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19868

Females

7369

F50-54

7369

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18444

Females

6594

F50-54

6594

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18639

Females

6698

F50-54

6698

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17775

Females

6295

F50-54

6295

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16207

Females

5594

F50-54

5594

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15731

Females

5444

F50-54

5444

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15954

Females

5687

F50-54

5687

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15061

Females

5278

F50-54

5278

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15134

Females

5413

F50-54

5413

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15382

Females

5593

F50-54

5593

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15287

Females

5689

F50-54

5689

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15760

Females

5971

F50-54

5971

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16599

Females

6357

F50-54

6357

Passing Analysis

Category:
Athletes Passed
3063
Passed By
748
Net Change
+2315
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19838
5K → 10K290259+31#19838#19807
10K → 15K186211-25#19807#19832
15K → 20K43536+399#19832#19433
20K → Half5721+36#19433#19397
Half → 25K32937+292#19397#19105
25K → 30K58821+567#19105#18538
30K → 20M24019+221#18538#18317
20M → 21M18428+156#18317#18161
21M → 35K1358+127#18161#18034
35K → 23M21721+196#18034#17838
23M → 24M16319+144#17838#17694
24M → 40K11522+93#17694#17601
40K → 25.2M5010+40#17601#17561
25.2M → Finish7436+38#17561#17523
TOTALS3063748+2315
📊

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