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BOSTON MARATHON 2025

Elise Chu

Bib: 9127•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 10%
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
6:48/mi
21:07
↑ 97↓ 3451.5%
10K· 6.21 mi
6:52/mi
42:28
↑ 79↓ 1380.4%
15K· 9.32 mi
6:53/mi
1:03:52
↑ 67↓ 78
20K· 12.43 mi
7:02/mi
1:25:44
↑ 106↓ 860.1%
Half· 13.11 mi
6:50/mi
1:30:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:05/mi
1:47:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:10:45
↑ 181↓ 1480.2%
20M
7:22/mi
2:20:46
↑ 64↓ 500.2%
21M
7:51/mi
2:28:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:04/mi
2:33:54
↑ 17↓ 861.7%
23M
7:20/mi
2:43:05
↑ 23↓ 630.6%
24M
7:02/mi
2:50:07
↓ 821.3%
40K· 24.85 mi
7:13/mi
2:56:17
↓ 200.3%
25.2M
7:56/mi
2:59:01
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:05:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:24
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:35:29
Pace7:17 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1421:076:4821:07
6:48
-
10K
6.21 mi11:07:3542:286:5021:21
6:52
+0:04
15K
9.32 mi11:28:591:03:526:5121:24
6:53
+0:01
20K
12.43 mi11:50:511:25:446:5421:52
7:02
+0:09
Half
13.11 mi11:55:311:30:246:544:40
6:50
-0:12
25K
15.53 mi12:12:421:47:356:5617:11
7:05
+0:15
30K
18.64 mi12:35:522:10:457:0123:10
7:27
+0:22
20M
20.00 mi12:45:532:20:467:0210:01
7:22
-0:05
21M
21.00 mi12:53:442:28:377:057:51
7:51
+0:29
35K
21.75 mi12:59:012:33:547:055:17
7:04
-0:47
23M
23.00 mi13:08:122:43:057:059:11
7:20
+0:16
24M
24.00 mi13:15:142:50:077:057:02
7:02
-0:18
40K
24.85 mi13:21:242:56:177:066:10
7:13
+0:11
25.2M
25.20 mi13:24:082:59:017:062:44
7:56
+0:43
Finish
26.22 mi13:31:003:05:537:066:52
6:44
-1:12

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

6:44 /mi

Average Pace

7:06 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:08

82% of race

Time at Steady Pace

33:45

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:05 /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 mi10:46:1421:076:4821:07
6:48
#6303
10K
6.21 mi11:07:3542:286:5021:21
6:52
#6626
15K
9.32 mi11:28:591:03:526:5121:24
6:53
#6695
20K
12.43 mi11:50:511:25:446:5421:52
7:02
#6808
Half
13.11 mi11:55:311:30:246:544:40
6:50
#6800
25K
15.53 mi12:12:421:47:356:5617:11
7:05
#6770
30K
18.64 mi12:35:522:10:457:0123:10
7:27
#6763
20M
20.00 mi12:45:532:20:467:0210:01
7:22
#6637
21M
21.00 mi12:53:442:28:377:057:51
7:51
#6551
35K
21.75 mi12:59:012:33:547:055:17
7:04
#6482
23M
23.00 mi13:08:122:43:057:059:11
7:20
#6355
24M
24.00 mi13:15:142:50:077:057:02
7:02
#6241
40K
24.85 mi13:21:242:56:177:066:10
7:13
#6147
25.2M
25.20 mi13:24:082:59:017:062:44
7:56
#6100
Finish
26.22 mi13:31:003:05:537:066:52
6:44
#5948
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi63035315316875(Top 24%)699(Top 6%)699(Top 13%)
10K6.21 mi3.10 mi6626-323607-76607-767053(Top 25%)718(Top 6%)718(Top 13%)
15K9.32 mi3.11 mi6695-69638-31638-316875(Top 24%)699(Top 6%)699(Top 13%)
20K12.43 mi3.11 mi6808-113659-21659-217118(Top 25%)807(Top 7%)807(Top 15%)
Half13.11 mi0.68 mi6800+8660-1660-16549(Top 23%)670(Top 5%)670(Top 12%)
25K15.53 mi2.42 mi6770+30675-15675-156899(Top 24%)832(Top 7%)832(Top 15%)
30K18.64 mi3.11 mi6763+7718-43718-437439(Top 26%)1176(Top 10%)1176(Top 22%)
20M20.00 mi1.36 mi6637+126709+9709+96225(Top 22%)861(Top 7%)861(Top 16%)
21M21.00 mi1.00 mi6551+86713-4713-46510(Top 23%)1101(Top 9%)1101(Top 20%)
35K21.75 mi0.75 mi6482+69705+8705+85814(Top 20%)856(Top 7%)856(Top 16%)
23M23.00 mi1.25 mi6355+127697+8697+85671(Top 20%)874(Top 7%)874(Top 16%)
24M24.00 mi1.00 mi6241+114684+13684+134850(Top 17%)683(Top 6%)683(Top 12%)
40K24.85 mi0.85 mi6147+94677+7677+75143(Top 18%)826(Top 7%)826(Top 15%)
25.2M25.20 mi0.35 mi6100+47676+1676+15615(Top 20%)1078(Top 9%)1078(Top 20%)
Finish26.22 mi1.02 mi5948+152654+22654+224160(Top 15%)593(Top 5%)593(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6875

Females

699

F18-39

699

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

7053

Females

718

F18-39

718

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6875

Females

699

F18-39

699

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

7118

Females

807

F18-39

807

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6549

Females

670

F18-39

670

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6899

Females

832

F18-39

832

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7439

Females

1176

F18-39

1176

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

6225

Females

861

F18-39

861

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6510

Females

1101

F18-39

1101

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5814

Females

856

F18-39

856

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5671

Females

874

F18-39

874

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4850

Females

683

F18-39

683

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5143

Females

826

F18-39

826

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5615

Females

1078

F18-39

1078

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4160

Females

593

F18-39

593

Passing Analysis

Category:
Athletes Passed
1597
Passed By
1242
Net Change
+355
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6303
5K → 10K88411-323#6303#6626
10K → 15K127196-69#6626#6695
15K → 20K89202-113#6695#6808
20K → Half2921+8#6808#6800
Half → 25K133103+30#6800#6770
25K → 30K183176+7#6770#6763
30K → 20M15428+126#6763#6637
20M → 21M11933+86#6637#6551
21M → 35K8213+69#6551#6482
35K → 23M14821+127#6482#6355
23M → 24M1195+114#6355#6241
24M → 40K11521+94#6241#6147
40K → 25.2M514+47#6147#6100
25.2M → Finish1608+152#6100#5948
TOTALS15971242+355
📊

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