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BOSTON MARATHON 2025

Guohui Liu

Bib: 24737•F

MA

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 36%
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
8:52/mi
27:34
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
54:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:21:53
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:49:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:55:44
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:17:33
↑ 66↓ 880.2%
30K· 18.64 mi
9:28/mi
2:46:57
↑ 181↓ 1480.2%
20M
9:29/mi
2:59:50
↑ 64↓ 500.2%
21M
9:49/mi
3:09:39
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:15:56
↑ 17↓ 861.7%
23M
8:26/mi
3:26:29
↑ 23↓ 630.6%
24M
8:27/mi
3:34:56
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:42:25
↓ 200.3%
25.2M
9:49/mi
3:45:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:54:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:44
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time1:59:12
Pace9:06 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:5227:348:5227:34
8:52
-
10K
6.21 mi11:54:4754:298:4626:55
8:40
-0:12
15K
9.32 mi12:22:111:21:538:4727:24
8:49
+0:09
20K
12.43 mi12:50:031:49:458:5027:52
8:58
+0:09
Half
13.11 mi12:56:021:55:448:505:59
8:46
-0:12
25K
15.53 mi13:17:512:17:338:5121:49
9:00
+0:14
30K
18.64 mi13:47:152:46:578:5729:24
9:28
+0:28
20M
20.00 mi14:00:082:59:508:5912:53
9:29
+0:01
21M
21.00 mi14:09:573:09:399:029:49
9:49
+0:20
35K
21.75 mi14:16:143:15:569:016:17
8:24
-1:25
23M
23.00 mi14:26:473:26:298:5910:33
8:26
+0:02
24M
24.00 mi14:35:143:34:568:578:27
8:27
+0:01
40K
24.85 mi14:42:433:42:258:577:29
8:45
+0:18
25.2M
25.20 mi14:46:063:45:488:583:23
9:49
+1:04
Finish
26.22 mi14:55:143:54:568:589:08
8:58
-0:51

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

8:24 /mi

Average Pace

8:58 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:27

76% of race

Time at Steady Pace

55:29

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:58 /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 mi11:27:5227:348:5227:34
8:52
#21868
10K
6.21 mi11:54:4754:298:4626:55
8:40
#21274
15K
9.32 mi12:22:111:21:538:4727:24
8:49
#21175
20K
12.43 mi12:50:031:49:458:5027:52
8:58
#21075
Half
13.11 mi12:56:021:55:448:505:59
8:46
#21076
25K
15.53 mi13:17:512:17:338:5121:49
9:00
#20889
30K
18.64 mi13:47:152:46:578:5729:24
9:28
#20665
20M
20.00 mi14:00:082:59:508:5912:53
9:29
#20513
21M
21.00 mi14:09:573:09:399:029:49
9:49
#20337
35K
21.75 mi14:16:143:15:569:016:17
8:24
#20175
23M
23.00 mi14:26:473:26:298:5910:33
8:26
#19805
24M
24.00 mi14:35:143:34:568:578:27
8:27
#19580
40K
24.85 mi14:42:433:42:258:577:29
8:45
#19414
25.2M
25.20 mi14:46:063:45:488:583:23
9:49
#19342
Finish
26.22 mi14:55:143:54:568:589:08
8:58
#19325
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi218688549854921120(Top 74%)8065(Top 66%)8065(Top 811%)
10K6.21 mi3.10 mi21274+5948200+3498200+34920687(Top 73%)7852(Top 64%)7852(Top 790%)
15K9.32 mi3.11 mi21175+998133+678133+6721120(Top 74%)8065(Top 66%)8065(Top 811%)
20K12.43 mi3.11 mi21075+1008071+628071+6220812(Top 73%)7953(Top 65%)7953(Top 800%)
Half13.11 mi0.68 mi21076-18068+38068+320780(Top 73%)7906(Top 65%)7906(Top 795%)
25K15.53 mi2.42 mi20889+1877978+907978+9019901(Top 70%)7476(Top 61%)7476(Top 752%)
30K18.64 mi3.11 mi20665+2247908+707908+7019799(Top 70%)7547(Top 62%)7547(Top 759%)
20M20.00 mi1.36 mi20513+1527837+717837+7119095(Top 67%)7311(Top 60%)7311(Top 736%)
21M21.00 mi1.00 mi20337+1767768+697768+6917584(Top 62%)6583(Top 54%)6583(Top 662%)
35K21.75 mi0.75 mi20175+1627692+767692+7614917(Top 53%)5206(Top 43%)5206(Top 524%)
23M23.00 mi1.25 mi19805+3707510+1827510+18212883(Top 45%)4215(Top 34%)4215(Top 424%)
24M24.00 mi1.00 mi19580+2257411+997411+9914244(Top 50%)4963(Top 41%)4963(Top 499%)
40K24.85 mi0.85 mi19414+1667329+827329+8214970(Top 53%)5515(Top 45%)5515(Top 555%)
25.2M25.20 mi0.35 mi19342+727300+297300+2916238(Top 57%)6223(Top 51%)6223(Top 626%)
Finish26.22 mi1.02 mi19325+177310-107310-1018870(Top 66%)7530(Top 62%)7530(Top 758%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21120

Females

8065

F55-59

8065

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20687

Females

7852

F55-59

7852

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21120

Females

8065

F55-59

8065

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20812

Females

7953

F55-59

7953

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20780

Females

7906

F55-59

7906

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19901

Females

7476

F55-59

7476

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19799

Females

7547

F55-59

7547

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

19095

Females

7311

F55-59

7311

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17584

Females

6583

F55-59

6583

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14917

Females

5206

F55-59

5206

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12883

Females

4215

F55-59

4215

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14244

Females

4963

F55-59

4963

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14970

Females

5515

F55-59

5515

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16238

Females

6223

F55-59

6223

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18870

Females

7530

F55-59

7530

Passing Analysis

Category:
Athletes Passed
3212
Passed By
669
Net Change
+2543
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21868
5K → 10K67076+594#21868#21274
10K → 15K254155+99#21274#21175
15K → 20K243143+100#21175#21075
20K → Half3334-1#21075#21076
Half → 25K23851+187#21076#20889
25K → 30K327103+224#20889#20665
30K → 20M18230+152#20665#20513
20M → 21M19115+176#20513#20337
21M → 35K1620+162#20337#20175
35K → 23M3700+370#20175#19805
23M → 24M2294+225#19805#19580
24M → 40K1671+166#19580#19414
40K → 25.2M764+72#19414#19342
25.2M → Finish7053+17#19342#19325
TOTALS3212669+2543
📊

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