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BOSTON MARATHON 2025

Mingdi Zhao

Bib: 19843•F

MB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F55-59)
#0 / 994
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:53
Rank: #16671
Start → 5K
8:01/mi
24:53 split
10K· 6.21 mi
49:48
Rank: #16638 (+33)
5K → 10K
8:01/mi
24:55 split
15K· 9.32 mi
1:14:41
Rank: #16434 (+204)
10K → 15K
8:01/mi
24:53 split
20K· 12.43 mi
1:40:17
Rank: #16454 (-20)
15K → 20K
8:14/mi
25:36 split
Half· 13.11 mi
1:45:43
Rank: #16419 (+35)
20K → Half
7:58/mi
5:26 split
25K· 15.53 mi
2:06:02
Rank: #16408 (+11)
Half → 25K
8:23/mi
20:19 split
30K· 18.64 mi
2:33:38
Rank: #16467 (-59)
25K → 30K
8:53/mi
27:36 split
20M
2:45:58
Rank: #16504 (-37)
30K → 20M
9:05/mi
12:20 split
21M
2:55:49
Rank: #16532 (-28)
20M → 21M
9:51/mi
9:51 split
35K· 21.75 mi
3:02:29
Rank: #16553 (-21)
21M → 35K
8:55/mi
6:40 split
23M
3:13:53
Rank: #16533 (+20)
35K → 23M
9:06/mi
11:24 split
24M
3:22:38
Rank: #16509 (+24)
23M → 24M
8:45/mi
8:45 split
40K· 24.85 mi
3:30:16
Rank: #16468 (+41)
24M → 40K
8:56/mi
7:38 split
25.2M
3:33:48
Rank: #16508 (-40)
40K → 25.2M
10:15/mi
3:32 split
Finish· 26.22 mi
3:42:28
Rank: #16486 (+22)
25.2M → Finish
8:30/mi
8:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:43
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:56:45
Pace8:54 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4524:538:0124:53
8:01
-
10K
6.21 mi11:41:4049:488:0124:55
8:01
0:00
15K
9.32 mi12:06:331:14:418:0124:53
8:01
0:00
20K
12.43 mi12:32:091:40:178:0425:36
8:14
+0:13
Half
13.11 mi12:37:351:45:438:045:26
7:58
-0:16
25K
15.53 mi12:57:542:06:028:0720:19
8:23
+0:25
30K
18.64 mi13:25:302:33:388:1427:36
8:53
+0:30
20M
20.00 mi13:37:502:45:588:1812:20
9:05
+0:12
21M
21.00 mi13:47:412:55:498:229:51
9:51
+0:46
35K
21.75 mi13:54:213:02:298:236:40
8:55
-0:56
23M
23.00 mi14:05:453:13:538:2611:24
9:06
+0:11
24M
24.00 mi14:14:303:22:388:278:45
8:45
-0:21
40K
24.85 mi14:22:083:30:168:287:38
8:56
+0:11
25.2M
25.20 mi14:25:403:33:488:293:32
10:15
+1:19
Finish
26.22 mi14:34:203:42:288:298:40
8:30
-1:45

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

7:58 /mi

Average Pace

8:29 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:02

57% of race

Time at Steady Pace

59:19

27% of race

Time at Slower Pace

37:07

17% of race

Average Pace: 8:29 /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 mi11:16:4524:538:0124:53
8:01
#16671
10K
6.21 mi11:41:4049:488:0124:55
8:01
#16638
15K
9.32 mi12:06:331:14:418:0124:53
8:01
#16434
20K
12.43 mi12:32:091:40:178:0425:36
8:14
#16454
Half
13.11 mi12:37:351:45:438:045:26
7:58
#16419
25K
15.53 mi12:57:542:06:028:0720:19
8:23
#16408
30K
18.64 mi13:25:302:33:388:1427:36
8:53
#16467
20M
20.00 mi13:37:502:45:588:1812:20
9:05
#16504
21M
21.00 mi13:47:412:55:498:229:51
9:51
#16532
35K
21.75 mi13:54:213:02:298:236:40
8:55
#16553
23M
23.00 mi14:05:453:13:538:2611:24
9:06
#16533
24M
24.00 mi14:14:303:22:388:278:45
8:45
#16509
40K
24.85 mi14:22:083:30:168:287:38
8:56
#16468
25.2M
25.20 mi14:25:403:33:488:293:32
10:15
#16508
Finish
26.22 mi14:34:203:42:288:298:40
8:30
#16486
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi166715557555716128(Top 57%)5219(Top 43%)5219(Top 525%)
10K6.21 mi3.10 mi16638+335517+405517+4016649(Top 59%)5512(Top 45%)5512(Top 555%)
15K9.32 mi3.11 mi16434+2045397+1205397+12016128(Top 57%)5219(Top 43%)5219(Top 525%)
20K12.43 mi3.11 mi16454-205406-95406-916576(Top 58%)5532(Top 45%)5532(Top 557%)
Half13.11 mi0.68 mi16419+355387+195387+1915694(Top 55%)5014(Top 41%)5014(Top 504%)
25K15.53 mi2.42 mi16408+115409-225409-2216454(Top 58%)5565(Top 46%)5565(Top 560%)
30K18.64 mi3.11 mi16467-595509-1005509-10017074(Top 60%)6065(Top 50%)6065(Top 610%)
20M20.00 mi1.36 mi16504-375557-485557-4817209(Top 61%)6257(Top 51%)6257(Top 629%)
21M21.00 mi1.00 mi16532-285598-415598-4117703(Top 62%)6636(Top 54%)6636(Top 668%)
35K21.75 mi0.75 mi16553-215631-335631-3317817(Top 63%)6793(Top 56%)6793(Top 683%)
23M23.00 mi1.25 mi16533+205654-235654-2316852(Top 59%)6359(Top 52%)6359(Top 640%)
24M24.00 mi1.00 mi16509+245666-125666-1216039(Top 56%)5948(Top 49%)5948(Top 598%)
40K24.85 mi0.85 mi16468+415671-55671-515915(Top 56%)5995(Top 49%)5995(Top 603%)
25.2M25.20 mi0.35 mi16508-405704-335704-3318103(Top 64%)7178(Top 59%)7178(Top 722%)
Finish26.22 mi1.02 mi16486+225721-175721-1716268(Top 57%)6172(Top 50%)6172(Top 621%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16128

Females

5219

F55-59

5219

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16649

Females

5512

F55-59

5512

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16128

Females

5219

F55-59

5219

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16576

Females

5532

F55-59

5532

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15694

Females

5014

F55-59

5014

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16454

Females

5565

F55-59

5565

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

17074

Females

6065

F55-59

6065

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17209

Females

6257

F55-59

6257

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17703

Females

6636

F55-59

6636

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17817

Females

6793

F55-59

6793

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16852

Females

6359

F55-59

6359

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

16039

Females

5948

F55-59

5948

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15915

Females

5995

F55-59

5995

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18103

Females

7178

F55-59

7178

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16268

Females

6172

F55-59

6172

Passing Analysis

Category:
Athletes Passed
1927
Passed By
1742
Net Change
+185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16671
5K → 10K317284+33#16671#16638
10K → 15K307103+204#16638#16434
15K → 20K210230-20#16434#16454
20K → Half5419+35#16454#16419
Half → 25K155144+11#16419#16408
25K → 30K218277-59#16408#16467
30K → 20M92129-37#16467#16504
20M → 21M105133-28#16504#16532
21M → 35K6182-21#16532#16553
35K → 23M122102+20#16553#16533
23M → 24M8864+24#16533#16509
24M → 40K9352+41#16509#16468
40K → 25.2M2161-40#16468#16508
25.2M → Finish8462+22#16508#16486
TOTALS19271742+185
📊

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