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BOSTON MARATHON 2025

Jie Zheng

Bib: 24038•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:51
Rank: #22270
Start → 5K
27:51 | 8:58/mi
10K· 6.21 mi
54:58
Rank: #21693 (+577)
5K → 10K
27:07 | 8:44/mi
15K· 9.32 mi
1:22:03
Rank: #21282 (+411)
10K → 15K
27:05 | 8:43/mi
20K· 12.43 mi
1:49:10
Rank: #20835 (+447)
15K → 20K
27:07 | 8:44/mi
Half· 13.11 mi
1:54:58
Rank: #20773 (+62)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:16:15
Rank: #20475 (+298)
Half → 25K
21:17 | 8:47/mi
30K· 18.64 mi
2:44:27
Rank: #19996 (+479)
25K → 30K
28:12 | 9:05/mi
20M
2:56:29
Rank: #19686 (+310)
30K → 20M
12:02 | 8:51/mi
21M
3:06:18
Rank: #19551 (+135)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:12:59
Rank: #19487 (+64)
21M → 35K
6:41 | 8:56/mi
23M
3:24:06
Rank: #19282 (+205)
35K → 23M
11:07 | 8:53/mi
24M
3:32:53
Rank: #19143 (+139)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:40:48
Rank: #19073 (+70)
24M → 40K
7:55 | 9:16/mi
25.2M
3:44:17
Rank: #19042 (+31)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:53:13
Rank: #18979 (+63)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:58
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time1:58:15
Pace9:01 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4927:518:5827:51
8:58
-
10K
6.21 mi11:52:5654:588:5127:07
8:44
-0:14
15K
9.32 mi12:20:011:22:038:4827:05
8:43
-0:01
20K
12.43 mi12:47:081:49:108:4727:07
8:44
+0:01
Half
13.11 mi12:52:561:54:588:465:48
8:30
-0:14
25K
15.53 mi13:14:132:16:158:4621:17
8:47
+0:17
30K
18.64 mi13:42:252:44:278:4928:12
9:05
+0:18
20M
20.00 mi13:54:272:56:298:4912:02
8:51
-0:14
21M
21.00 mi14:04:163:06:188:529:49
9:49
+0:58
35K
21.75 mi14:10:573:12:598:526:41
8:56
-0:53
23M
23.00 mi14:22:043:24:068:5211:07
8:53
-0:03
24M
24.00 mi14:30:513:32:538:528:47
8:47
-0:06
40K
24.85 mi14:38:463:40:488:537:55
9:16
+0:29
25.2M
25.20 mi14:42:153:44:178:543:29
10:06
+0:50
Finish
26.22 mi14:51:113:53:138:548:56
8:46
-1:20

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

8:30 /mi

Average Pace

8:54 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:39:55

94% of race

Time at Steady Pace

9:49

4% of race

Time at Slower Pace

3:29

1% of race

Average Pace: 8:54 /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 mi11:25:4927:518:5827:51
8:58
#22270
10K
6.21 mi11:52:5654:588:5127:07
8:44
#21693
15K
9.32 mi12:20:011:22:038:4827:05
8:43
#21282
20K
12.43 mi12:47:081:49:108:4727:07
8:44
#20835
Half
13.11 mi12:52:561:54:588:465:48
8:30
#20773
25K
15.53 mi13:14:132:16:158:4621:17
8:47
#20475
30K
18.64 mi13:42:252:44:278:4928:12
9:05
#19996
20M
20.00 mi13:54:272:56:298:4912:02
8:51
#19686
21M
21.00 mi14:04:163:06:188:529:49
9:49
#19551
35K
21.75 mi14:10:573:12:598:526:41
8:56
#19487
23M
23.00 mi14:22:043:24:068:5211:07
8:53
#19282
24M
24.00 mi14:30:513:32:538:528:47
8:47
#19143
40K
24.85 mi14:38:463:40:488:537:55
9:16
#19073
25.2M
25.20 mi14:42:153:44:178:543:29
10:06
#19042
Finish
26.22 mi14:51:113:53:138:548:56
8:46
#18979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi222708776877620589(Top 72%)7764(Top 63%)7764(Top 596%)
10K6.21 mi3.10 mi21693+5778437+3398437+33921044(Top 74%)8039(Top 66%)8039(Top 617%)
15K9.32 mi3.11 mi21282+4118191+2468191+24620589(Top 72%)7764(Top 63%)7764(Top 596%)
20K12.43 mi3.11 mi20835+4477944+2477944+24719563(Top 69%)7241(Top 59%)7241(Top 556%)
Half13.11 mi0.68 mi20773+627912+327912+3219265(Top 68%)7056(Top 58%)7056(Top 542%)
25K15.53 mi2.42 mi20475+2987757+1557757+15518822(Top 66%)6885(Top 56%)6885(Top 528%)
30K18.64 mi3.11 mi19996+4797521+2367521+23618086(Top 64%)6625(Top 54%)6625(Top 508%)
20M20.00 mi1.36 mi19686+3107366+1557366+15516008(Top 56%)5608(Top 46%)5608(Top 430%)
21M21.00 mi1.00 mi19551+1357316+507316+5017578(Top 62%)6577(Top 54%)6577(Top 505%)
35K21.75 mi0.75 mi19487+647293+237293+2317949(Top 63%)6875(Top 56%)6875(Top 528%)
23M23.00 mi1.25 mi19282+2057208+857208+8515594(Top 55%)5672(Top 46%)5672(Top 435%)
24M24.00 mi1.00 mi19143+1397150+587150+5816266(Top 57%)6092(Top 50%)6092(Top 468%)
40K24.85 mi0.85 mi19073+707134+167134+1617677(Top 62%)6964(Top 57%)6964(Top 534%)
25.2M25.20 mi0.35 mi19042+317132+27132+217528(Top 62%)6882(Top 56%)6882(Top 528%)
Finish26.22 mi1.02 mi18979+637117+157117+1517893(Top 63%)7028(Top 57%)7028(Top 539%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20589

Females

7764

F50-54

7764

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21044

Females

8039

F50-54

8039

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20589

Females

7764

F50-54

7764

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19563

Females

7241

F50-54

7241

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19265

Females

7056

F50-54

7056

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18822

Females

6885

F50-54

6885

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18086

Females

6625

F50-54

6625

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

16008

Females

5608

F50-54

5608

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17578

Females

6577

F50-54

6577

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17949

Females

6875

F50-54

6875

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15594

Females

5672

F50-54

5672

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16266

Females

6092

F50-54

6092

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17677

Females

6964

F50-54

6964

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17528

Females

6882

F50-54

6882

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17893

Females

7028

F50-54

7028

Passing Analysis

Category:
Athletes Passed
3676
Passed By
385
Net Change
+3291
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22270
5K → 10K65780+577#22270#21693
10K → 15K47665+411#21693#21282
15K → 20K47225+447#21282#20835
20K → Half664+62#20835#20773
Half → 25K32628+298#20773#20475
25K → 30K51334+479#20475#19996
30K → 20M3111+310#19996#19686
20M → 21M17338+135#19686#19551
21M → 35K8521+64#19551#19487
35K → 23M2105+205#19487#19282
23M → 24M1489+139#19282#19143
24M → 40K10232+70#19143#19073
40K → 25.2M5221+31#19073#19042
25.2M → Finish8522+63#19042#18979
TOTALS3676385+3291
📊

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