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BOSTON MARATHON 2025

Hongzhi Miao

Bib: 24051•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 41%
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
8:51/mi
27:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
55:03
↑ 79↓ 1380.4%
15K· 9.32 mi
8:55/mi
1:22:46
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:50:29
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:56:20
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
2:18:04
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:47:02
↑ 181↓ 1480.2%
20M
9:26/mi
2:59:51
↑ 64↓ 500.2%
21M
10:00/mi
3:09:51
↑ 106↓ 241.6%
35K· 21.75 mi
9:17/mi
3:16:48
↑ 17↓ 861.7%
23M
9:21/mi
3:28:30
↑ 23↓ 630.6%
24M
8:56/mi
3:37:26
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:45:15
↓ 200.3%
25.2M
9:43/mi
3:48:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
3:57:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:20
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:01:09
Pace9:15 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4227:318:5127:31
8:51
-
10K
6.21 mi11:53:1455:038:5227:32
8:52
+0:01
15K
9.32 mi12:20:571:22:468:5327:43
8:55
+0:03
20K
12.43 mi12:48:401:50:298:5327:43
8:55
0:00
Half
13.11 mi12:54:311:56:208:525:51
8:34
-0:21
25K
15.53 mi13:16:152:18:048:5321:44
8:58
+0:24
30K
18.64 mi13:45:132:47:028:5828:58
9:19
+0:21
20M
20.00 mi13:58:022:59:519:0012:49
9:26
+0:07
21M
21.00 mi14:08:023:09:519:0210:00
10:00
+0:34
35K
21.75 mi14:14:593:16:489:036:57
9:17
-0:43
23M
23.00 mi14:26:413:28:309:0411:42
9:21
+0:04
24M
24.00 mi14:35:373:37:269:048:56
8:56
-0:25
40K
24.85 mi14:43:263:45:159:047:49
9:09
+0:13
25.2M
25.20 mi14:46:473:48:369:043:21
9:43
+0:34
Finish
26.22 mi14:55:403:57:299:048:53
8:43
-1:00

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

8:34 /mi

Average Pace

9:04 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:31:19

89% of race

Time at Steady Pace

26:10

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:25:4227:318:5127:31
8:51
#21797
10K
6.21 mi11:53:1455:038:5227:32
8:52
#21758
15K
9.32 mi12:20:571:22:468:5327:43
8:55
#21716
20K
12.43 mi12:48:401:50:298:5327:43
8:55
#21395
Half
13.11 mi12:54:311:56:208:525:51
8:34
#21296
25K
15.53 mi13:16:152:18:048:5321:44
8:58
#21035
30K
18.64 mi13:45:132:47:028:5828:58
9:19
#20686
20M
20.00 mi13:58:022:59:519:0012:49
9:26
#20520
21M
21.00 mi14:08:023:09:519:0210:00
10:00
#20394
35K
21.75 mi14:14:593:16:489:036:57
9:17
#20338
23M
23.00 mi14:26:413:28:309:0411:42
9:21
#20212
24M
24.00 mi14:35:373:37:269:048:56
8:56
#20095
40K
24.85 mi14:43:263:45:159:047:49
9:09
#19981
25.2M
25.20 mi14:46:473:48:369:043:21
9:43
#19904
Finish
26.22 mi14:55:403:57:299:048:53
8:43
#19834
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi217978510851021670(Top 76%)8362(Top 68%)8362(Top 841%)
10K6.21 mi3.10 mi21758+398476+348476+3421705(Top 76%)8422(Top 69%)8422(Top 847%)
15K9.32 mi3.11 mi21716+428444+328444+3221670(Top 76%)8362(Top 68%)8362(Top 841%)
20K12.43 mi3.11 mi21395+3218258+1868258+18620587(Top 72%)7825(Top 64%)7825(Top 787%)
Half13.11 mi0.68 mi21296+998196+628196+6219737(Top 69%)7325(Top 60%)7325(Top 737%)
25K15.53 mi2.42 mi21035+2618060+1368060+13619756(Top 70%)7398(Top 61%)7398(Top 744%)
30K18.64 mi3.11 mi20686+3497918+1427918+14219224(Top 68%)7243(Top 59%)7243(Top 729%)
20M20.00 mi1.36 mi20520+1667840+787840+7818874(Top 66%)7200(Top 59%)7200(Top 724%)
21M21.00 mi1.00 mi20394+1267793+477793+4718319(Top 64%)6966(Top 57%)6966(Top 701%)
35K21.75 mi0.75 mi20338+567779+147779+1419549(Top 69%)7741(Top 63%)7741(Top 779%)
23M23.00 mi1.25 mi20212+1267734+457734+4518010(Top 63%)6990(Top 57%)6990(Top 703%)
24M24.00 mi1.00 mi20095+1177688+467688+4617056(Top 60%)6538(Top 53%)6538(Top 658%)
40K24.85 mi0.85 mi19981+1147650+387650+3817127(Top 60%)6658(Top 54%)6658(Top 670%)
25.2M25.20 mi0.35 mi19904+777615+357615+3515795(Top 56%)6006(Top 49%)6006(Top 604%)
Finish26.22 mi1.02 mi19834+707590+257590+2517620(Top 62%)6888(Top 56%)6888(Top 693%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21670

Females

8362

F55-59

8362

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21705

Females

8422

F55-59

8422

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21670

Females

8362

F55-59

8362

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20587

Females

7825

F55-59

7825

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19737

Females

7325

F55-59

7325

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19756

Females

7398

F55-59

7398

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19224

Females

7243

F55-59

7243

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18874

Females

7200

F55-59

7200

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18319

Females

6966

F55-59

6966

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19549

Females

7741

F55-59

7741

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

18010

Females

6990

F55-59

6990

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

17056

Females

6538

F55-59

6538

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17127

Females

6658

F55-59

6658

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15795

Females

6006

F55-59

6006

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17620

Females

6888

F55-59

6888

Passing Analysis

Category:
Athletes Passed
2688
Passed By
725
Net Change
+1963
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21797
5K → 10K288249+39#21797#21758
10K → 15K221179+42#21758#21716
15K → 20K37655+321#21716#21395
20K → Half1089+99#21395#21296
Half → 25K29029+261#21296#21035
25K → 30K40657+349#21035#20686
30K → 20M19327+166#20686#20520
20M → 21M15327+126#20520#20394
21M → 35K8125+56#20394#20338
35K → 23M15327+126#20338#20212
23M → 24M1258+117#20212#20095
24M → 40K1239+114#20095#19981
40K → 25.2M781+77#19981#19904
25.2M → Finish9323+70#19904#19834
TOTALS2688725+1963
📊

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