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BOSTON MARATHON 2025

Qiaoli Zhu

Bib: 18605•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
7:41/mi
23:52
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
48:59
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:15:56
↑ 67↓ 78
20K· 12.43 mi
8:29/mi
1:42:18
↑ 106↓ 860.1%
Half· 13.11 mi
10:05/mi
1:49:11
↑ 19↓ 370.5%
25K· 15.53 mi
9:28/mi
2:12:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:42/mi
2:42:16
↑ 181↓ 1480.2%
20M
9:25/mi
2:55:04
↑ 64↓ 500.2%
21M
11:20/mi
3:06:24
↑ 106↓ 241.6%
35K· 21.75 mi
9:49/mi
3:13:45
↑ 17↓ 861.7%
23M
9:25/mi
3:25:32
↑ 23↓ 630.6%
24M
9:43/mi
3:35:15
↓ 821.3%
40K· 24.85 mi
9:25/mi
3:43:18
↓ 200.3%
25.2M
10:52/mi
3:47:03
↑ 13↓ 160.2%
Finish· 26.22 mi
9:32/mi
3:56:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:11
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:07:35
Pace9:44 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4823:527:4123:52
7:41
-
10K
6.21 mi11:45:5548:597:5325:07
8:05
+0:24
15K
9.32 mi12:12:521:15:568:0926:57
8:40
+0:35
20K
12.43 mi12:39:141:42:188:1426:22
8:29
-0:11
Half
13.11 mi12:46:071:49:118:206:53
10:05
+1:36
25K
15.53 mi13:09:032:12:078:3022:56
9:28
-0:37
30K
18.64 mi13:39:122:42:168:4230:09
9:42
+0:14
20M
20.00 mi13:52:002:55:048:4512:48
9:25
-0:17
21M
21.00 mi14:03:203:06:248:5311:20
11:20
+1:55
35K
21.75 mi14:10:413:13:458:557:21
9:49
-1:31
23M
23.00 mi14:22:283:25:328:5611:47
9:25
-0:24
24M
24.00 mi14:32:113:35:158:589:43
9:43
+0:18
40K
24.85 mi14:40:143:43:188:598:03
9:25
-0:18
25.2M
25.20 mi14:43:593:47:039:013:45
10:52
+1:27
Finish
26.22 mi14:53:423:56:469:029:43
9:32
-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

7:41 /mi

Average Pace

9:02 /mi

Slowest Pace

11:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:18

43% of race

Time at Steady Pace

1:52:30

48% of race

Time at Slower Pace

21:58

9% of race

Average Pace: 9:02 /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 mi11:20:4823:527:4123:52
7:41
#13838
10K
6.21 mi11:45:5548:597:5325:07
8:05
#15519
15K
9.32 mi12:12:521:15:568:0926:57
8:40
#17415
20K
12.43 mi12:39:141:42:188:1426:22
8:29
#17565
Half
13.11 mi12:46:071:49:118:206:53
10:05
#18156
25K
15.53 mi13:09:032:12:078:3022:56
9:28
#18930
30K
18.64 mi13:39:122:42:168:4230:09
9:42
#19348
20M
20.00 mi13:52:002:55:048:4512:48
9:25
#19313
21M
21.00 mi14:03:203:06:248:5311:20
11:20
#19581
35K
21.75 mi14:10:413:13:458:557:21
9:49
#19674
23M
23.00 mi14:22:283:25:328:5611:47
9:25
#19590
24M
24.00 mi14:32:113:35:158:589:43
9:43
#19640
40K
24.85 mi14:40:143:43:188:598:03
9:25
#19593
25.2M
25.20 mi14:43:593:47:039:013:45
10:52
#19617
Finish
26.22 mi14:53:423:56:469:029:43
9:32
#19697
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi138383805380520336(Top 72%)7619(Top 62%)7619(Top 420%)
10K6.21 mi3.10 mi15519-16814855-10504855-105017100(Top 60%)5765(Top 47%)5765(Top 318%)
15K9.32 mi3.11 mi17415-18965964-11095964-110920336(Top 72%)7619(Top 62%)7619(Top 420%)
20K12.43 mi3.11 mi17565-1506077-1136077-11318158(Top 64%)6428(Top 53%)6428(Top 355%)
Half13.11 mi0.68 mi18156-5916435-3586435-35825012(Top 88%)10259(Top 84%)10259(Top 566%)
25K15.53 mi2.42 mi18930-7746877-4426877-44221725(Top 76%)8498(Top 69%)8498(Top 469%)
30K18.64 mi3.11 mi19348-4187158-2817158-28120708(Top 73%)8056(Top 66%)8056(Top 444%)
20M20.00 mi1.36 mi19313+357162-47162-418842(Top 66%)7182(Top 59%)7182(Top 396%)
21M21.00 mi1.00 mi19581-2687339-1777339-17722234(Top 78%)9095(Top 74%)9095(Top 502%)
35K21.75 mi0.75 mi19674-937399-607399-6021399(Top 75%)8714(Top 71%)8714(Top 481%)
23M23.00 mi1.25 mi19590+847392+77392+718307(Top 64%)7144(Top 58%)7144(Top 394%)
24M24.00 mi1.00 mi19640-507448-567448-5620448(Top 72%)8322(Top 68%)8322(Top 459%)
40K24.85 mi0.85 mi19593+477434+147434+1418377(Top 65%)7326(Top 60%)7326(Top 404%)
25.2M25.20 mi0.35 mi19617-247462-287462-2820281(Top 71%)8301(Top 68%)8301(Top 458%)
Finish26.22 mi1.02 mi19697-807517-557517-5521306(Top 75%)8813(Top 72%)8813(Top 486%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20336

Females

7619

F45-49

7619

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17100

Females

5765

F45-49

5765

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20336

Females

7619

F45-49

7619

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18158

Females

6428

F45-49

6428

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

25012

Females

10259

F45-49

10259

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21725

Females

8498

F45-49

8498

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20708

Females

8056

F45-49

8056

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18842

Females

7182

F45-49

7182

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22234

Females

9095

F45-49

9095

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21399

Females

8714

F45-49

8714

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18307

Females

7144

F45-49

7144

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20448

Females

8322

F45-49

8322

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18377

Females

7326

F45-49

7326

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20281

Females

8301

F45-49

8301

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21306

Females

8813

F45-49

8813

Passing Analysis

Category:
Athletes Passed
833
Passed By
6692
Net Change
-5859
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13838
5K → 10K281709-1681#13838#15519
10K → 15K131909-1896#15519#17415
15K → 20K140290-150#17415#17565
20K → Half4595-591#17565#18156
Half → 25K36810-774#18156#18930
25K → 30K110528-418#18930#19348
30K → 20M12085+35#19348#19313
20M → 21M42310-268#19313#19581
21M → 35K22115-93#19581#19674
35K → 23M13349+84#19674#19590
23M → 24M4595-50#19590#19640
24M → 40K8235+47#19640#19593
40K → 25.2M2751-24#19593#19617
25.2M → Finish31111-80#19617#19697
TOTALS8336692-5859
📊

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