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BOSTON MARATHON 2025

Yonghong Zheng

Bib: 20025•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 39%
Division (F50-54)
#0 / 1303
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:32
Rank: #18241
Start → 5K
8:13/mi
25:32 split
10K· 6.21 mi
51:00
Rank: #18038 (+203)
5K → 10K
8:12/mi
25:28 split
15K· 9.32 mi
1:16:32
Rank: #17826 (+212)
10K → 15K
8:13/mi
25:32 split
20K· 12.43 mi
1:42:31
Rank: #17679 (+147)
15K → 20K
8:22/mi
25:59 split
Half· 13.11 mi
1:48:17
Rank: #17740 (-61)
20K → Half
8:27/mi
5:46 split
25K· 15.53 mi
2:09:05
Rank: #17642 (+98)
Half → 25K
8:35/mi
20:48 split
30K· 18.64 mi
2:36:42
Rank: #17511 (+131)
25K → 30K
8:53/mi
27:37 split
20M
2:48:51
Rank: #17408 (+103)
30K → 20M
8:56/mi
12:09 split
21M
2:58:32
Rank: #17372 (+36)
20M → 21M
9:41/mi
9:41 split
35K· 21.75 mi
3:05:03
Rank: #17326 (+46)
21M → 35K
8:43/mi
6:31 split
23M
3:16:18
Rank: #17260 (+66)
35K → 23M
8:59/mi
11:15 split
24M
3:25:16
Rank: #17239 (+21)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:32:55
Rank: #17185 (+54)
24M → 40K
8:57/mi
7:39 split
25.2M
3:36:20
Rank: #17178 (+7)
40K → 25.2M
9:54/mi
3:25 split
Finish· 26.22 mi
3:45:09
Rank: #17180 (-2)
25.2M → Finish
8:39/mi
8:49 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:17
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1025:328:1325:32
8:13
-
10K
6.21 mi11:42:3851:008:1225:28
8:12
-0:01
15K
9.32 mi12:08:101:16:328:1325:32
8:13
+0:01
20K
12.43 mi12:34:091:42:318:1525:59
8:22
+0:09
Half
13.11 mi12:39:551:48:178:165:46
8:27
+0:05
25K
15.53 mi13:00:432:09:058:1920:48
8:35
+0:08
30K
18.64 mi13:28:202:36:428:2427:37
8:53
+0:18
20M
20.00 mi13:40:292:48:518:2712:09
8:56
+0:03
21M
21.00 mi13:50:102:58:328:309:41
9:41
+0:45
35K
21.75 mi13:56:413:05:038:316:31
8:43
-0:58
23M
23.00 mi14:07:563:16:188:3211:15
8:59
+0:16
24M
24.00 mi14:16:543:25:168:338:58
8:58
-0:01
40K
24.85 mi14:24:333:32:558:347:39
8:57
-0:01
25.2M
25.20 mi14:27:583:36:208:353:25
9:54
+0:57
Finish
26.22 mi14:36:473:45:098:368:49
8:39
-1:15

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

8:12 /mi

Average Pace

8:36 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:17

48% of race

Time at Steady Pace

1:23:33

37% of race

Time at Slower Pace

33:19

15% of race

Average Pace: 8:35 /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 mi11:17:1025:328:1325:32
8:13
#18241
10K
6.21 mi11:42:3851:008:1225:28
8:12
#18038
15K
9.32 mi12:08:101:16:328:1325:32
8:13
#17826
20K
12.43 mi12:34:091:42:318:1525:59
8:22
#17679
Half
13.11 mi12:39:551:48:178:165:46
8:27
#17740
25K
15.53 mi13:00:432:09:058:1920:48
8:35
#17642
30K
18.64 mi13:28:202:36:428:2427:37
8:53
#17511
20M
20.00 mi13:40:292:48:518:2712:09
8:56
#17408
21M
21.00 mi13:50:102:58:328:309:41
9:41
#17372
35K
21.75 mi13:56:413:05:038:316:31
8:43
#17326
23M
23.00 mi14:07:563:16:188:3211:15
8:59
#17260
24M
24.00 mi14:16:543:25:168:338:58
8:58
#17239
40K
24.85 mi14:24:333:32:558:347:39
8:57
#17185
25.2M
25.20 mi14:27:583:36:208:353:25
9:54
#17178
Finish
26.22 mi14:36:473:45:098:368:49
8:39
#17180
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi182416485648517518(Top 62%)6026(Top 49%)6026(Top 462%)
10K6.21 mi3.10 mi18038+2036353+1326353+13217881(Top 63%)6229(Top 51%)6229(Top 478%)
15K9.32 mi3.11 mi17826+2126224+1296224+12917518(Top 62%)6026(Top 49%)6026(Top 462%)
20K12.43 mi3.11 mi17679+1476146+786146+7817326(Top 61%)5961(Top 49%)5961(Top 457%)
Half13.11 mi0.68 mi17740-616189-436189-4318911(Top 67%)6834(Top 56%)6834(Top 524%)
25K15.53 mi2.42 mi17642+986145+446145+4417690(Top 62%)6246(Top 51%)6246(Top 479%)
30K18.64 mi3.11 mi17511+1316128+176128+1717097(Top 60%)6078(Top 50%)6078(Top 466%)
20M20.00 mi1.36 mi17408+1036088+406088+4016493(Top 58%)5874(Top 48%)5874(Top 451%)
21M21.00 mi1.00 mi17372+366099-116099-1116968(Top 60%)6239(Top 51%)6239(Top 479%)
35K21.75 mi0.75 mi17326+466097+26097+216782(Top 59%)6206(Top 51%)6206(Top 476%)
23M23.00 mi1.25 mi17260+666091+66091+616185(Top 57%)5987(Top 49%)5987(Top 459%)
24M24.00 mi1.00 mi17239+216105-146105-1417204(Top 61%)6593(Top 54%)6593(Top 506%)
40K24.85 mi0.85 mi17185+546095+106095+1016026(Top 56%)6053(Top 50%)6053(Top 465%)
25.2M25.20 mi0.35 mi17178+76100-56100-516636(Top 59%)6404(Top 52%)6404(Top 491%)
Finish26.22 mi1.02 mi17180-26124-246124-2417198(Top 61%)6660(Top 54%)6660(Top 511%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17518

Females

6026

F50-54

6026

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17881

Females

6229

F50-54

6229

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17518

Females

6026

F50-54

6026

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17326

Females

5961

F50-54

5961

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18911

Females

6834

F50-54

6834

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17690

Females

6246

F50-54

6246

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17097

Females

6078

F50-54

6078

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16493

Females

5874

F50-54

5874

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16968

Females

6239

F50-54

6239

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16782

Females

6206

F50-54

6206

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16185

Females

5987

F50-54

5987

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17204

Females

6593

F50-54

6593

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

16026

Females

6053

F50-54

6053

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16636

Females

6404

F50-54

6404

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17198

Females

6660

F50-54

6660

Passing Analysis

Category:
Athletes Passed
2253
Passed By
1192
Net Change
+1061
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18241
5K → 10K389186+203#18241#18038
10K → 15K312100+212#18038#17826
15K → 20K259112+147#17826#17679
20K → Half1778-61#17679#17740
Half → 25K208110+98#17740#17642
25K → 30K276145+131#17642#17511
30K → 20M15956+103#17511#17408
20M → 21M11579+36#17408#17372
21M → 35K8539+46#17372#17326
35K → 23M14680+66#17326#17260
23M → 24M9170+21#17260#17239
24M → 40K8935+54#17239#17185
40K → 25.2M3629+7#17185#17178
25.2M → Finish7173-2#17178#17180
TOTALS22531192+1061
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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