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BOSTON MARATHON 2025

Quynh Chau

Bib: 20001•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 33%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F40-44)
#0 / 1718
Top 37%
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
7:59/mi
24:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:13:53
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:38:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:44:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:03:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:29:17
↑ 181↓ 1480.2%
20M
8:15/mi
2:40:29
↑ 64↓ 500.2%
21M
8:50/mi
2:49:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:55:20
↑ 17↓ 861.7%
23M
8:11/mi
3:05:35
↑ 23↓ 630.6%
24M
8:02/mi
3:13:37
↓ 821.3%
40K· 24.85 mi
8:03/mi
3:20:30
↓ 200.3%
25.2M
8:33/mi
3:23:27
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:31:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:06
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:46:56
Pace8:09 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4624:487:5924:48
7:59
-
10K
6.21 mi11:43:2549:277:5724:39
7:56
-0:03
15K
9.32 mi12:07:511:13:537:5624:26
7:52
-0:04
20K
12.43 mi12:32:421:38:447:5724:51
8:00
+0:08
Half
13.11 mi12:38:041:44:067:565:22
7:52
-0:08
25K
15.53 mi12:57:262:03:287:5719:22
7:59
+0:07
30K
18.64 mi13:23:152:29:178:0025:49
8:19
+0:20
20M
20.00 mi13:34:272:40:298:0111:12
8:15
-0:04
21M
21.00 mi13:43:172:49:198:048:50
8:50
+0:35
35K
21.75 mi13:49:182:55:208:046:01
8:03
-0:47
23M
23.00 mi13:59:333:05:358:0410:15
8:11
+0:08
24M
24.00 mi14:07:353:13:378:048:02
8:02
-0:09
40K
24.85 mi14:14:283:20:308:046:53
8:03
+0:01
25.2M
25.20 mi14:17:253:23:278:042:57
8:33
+0:30
Finish
26.22 mi14:25:003:31:028:037:35
7:26
-1:07

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

7:26 /mi

Average Pace

8:03 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:59

72% of race

Time at Steady Pace

50:13

24% of race

Time at Slower Pace

8:50

4% of race

Average Pace: 8:03 /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 mi11:18:4624:487:5924:48
7:59
#16448
10K
6.21 mi11:43:2549:277:5724:39
7:56
#16159
15K
9.32 mi12:07:511:13:537:5624:26
7:52
#15731
20K
12.43 mi12:32:421:38:447:5724:51
8:00
#15499
Half
13.11 mi12:38:041:44:067:565:22
7:52
#15454
25K
15.53 mi12:57:262:03:287:5719:22
7:59
#15142
30K
18.64 mi13:23:152:29:178:0025:49
8:19
#14809
20M
20.00 mi13:34:272:40:298:0111:12
8:15
#14525
21M
21.00 mi13:43:172:49:198:048:50
8:50
#14372
35K
21.75 mi13:49:182:55:208:046:01
8:03
#14303
23M
23.00 mi13:59:333:05:358:0410:15
8:11
#14099
24M
24.00 mi14:07:353:13:378:048:02
8:02
#13947
40K
24.85 mi14:14:283:20:308:046:53
8:03
#13773
25.2M
25.20 mi14:17:253:23:278:042:57
8:33
#13686
Finish
26.22 mi14:25:003:31:028:037:35
7:26
#13489
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi164485412541214956(Top 53%)4553(Top 37%)4553(Top 265%)
10K6.21 mi3.10 mi16159+2895238+1745238+17415949(Top 56%)5091(Top 42%)5091(Top 296%)
15K9.32 mi3.11 mi15731+4284969+2694969+26914956(Top 53%)4553(Top 37%)4553(Top 265%)
20K12.43 mi3.11 mi15499+2324856+1134856+11314919(Top 53%)4600(Top 38%)4600(Top 268%)
Half13.11 mi0.68 mi15454+454835+214835+2114830(Top 52%)4508(Top 37%)4508(Top 262%)
25K15.53 mi2.42 mi15142+3124685+1504685+15013809(Top 49%)4109(Top 34%)4109(Top 239%)
30K18.64 mi3.11 mi14809+3334566+1194566+11913577(Top 48%)4134(Top 34%)4134(Top 241%)
20M20.00 mi1.36 mi14525+2844430+1364430+13612110(Top 43%)3514(Top 29%)3514(Top 205%)
21M21.00 mi1.00 mi14372+1534364+664364+6612543(Top 44%)3890(Top 32%)3890(Top 226%)
35K21.75 mi0.75 mi14303+694341+234341+2312576(Top 44%)3939(Top 32%)3939(Top 229%)
23M23.00 mi1.25 mi14099+2044281+604281+6011319(Top 40%)3398(Top 28%)3398(Top 198%)
24M24.00 mi1.00 mi13947+1524227+544227+5411521(Top 41%)3583(Top 29%)3583(Top 209%)
40K24.85 mi0.85 mi13773+1744166+614166+6110599(Top 37%)3223(Top 26%)3223(Top 188%)
25.2M25.20 mi0.35 mi13686+874123+434123+439244(Top 33%)2681(Top 22%)2681(Top 156%)
Finish26.22 mi1.02 mi13489+1974031+924031+928829(Top 31%)2467(Top 20%)2467(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14956

Females

4553

F40-44

4553

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15949

Females

5091

F40-44

5091

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14956

Females

4553

F40-44

4553

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14919

Females

4600

F40-44

4600

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14830

Females

4508

F40-44

4508

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13809

Females

4109

F40-44

4109

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13577

Females

4134

F40-44

4134

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12110

Females

3514

F40-44

3514

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12543

Females

3890

F40-44

3890

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12576

Females

3939

F40-44

3939

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11319

Females

3398

F40-44

3398

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11521

Females

3583

F40-44

3583

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10599

Females

3223

F40-44

3223

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9244

Females

2681

F40-44

2681

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8829

Females

2467

F40-44

2467

Passing Analysis

Category:
Athletes Passed
3556
Passed By
597
Net Change
+2959
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16448
5K → 10K449160+289#16448#16159
10K → 15K48759+428#16159#15731
15K → 20K32088+232#15731#15499
20K → Half5712+45#15499#15454
Half → 25K34937+312#15454#15142
25K → 30K41986+333#15142#14809
30K → 20M30218+284#14809#14525
20M → 21M19441+153#14525#14372
21M → 35K9324+69#14372#14303
35K → 23M22824+204#14303#14099
23M → 24M16917+152#14099#13947
24M → 40K19319+174#13947#13773
40K → 25.2M903+87#13773#13686
25.2M → Finish2069+197#13686#13489
TOTALS3556597+2959
📊

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