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BOSTON MARATHON 2025

Ellen Sing

Bib: 19697•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
8:43/mi
27:06
↑ 97↓ 3451.5%
10K· 6.21 mi
9:26/mi
56:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:00/mi
1:24:24
↑ 67↓ 78
20K· 12.43 mi
9:26/mi
1:53:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:14/mi
2:00:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:34/mi
2:23:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:59/mi
2:54:14
↑ 181↓ 1480.2%
20M
10:31/mi
3:08:32
↑ 64↓ 500.2%
21M
11:18/mi
3:19:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:27:31
↑ 17↓ 861.7%
23M
9:51/mi
3:39:51
↑ 23↓ 630.6%
24M
10:06/mi
3:49:57
↓ 821.3%
40K· 24.85 mi
10:34/mi
3:58:59
↓ 200.3%
25.2M
11:07/mi
4:02:49
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
4:12:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:02
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:12:43
Pace10:07 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5927:068:4327:06
8:43
-
10K
6.21 mi11:48:1956:269:0529:20
9:26
+0:43
15K
9.32 mi12:16:171:24:249:0327:58
9:00
-0:26
20K
12.43 mi12:45:371:53:449:0929:20
9:26
+0:26
Half
13.11 mi12:51:552:00:029:096:18
9:14
-0:12
25K
15.53 mi13:15:072:23:149:1323:12
9:34
+0:20
30K
18.64 mi13:46:072:54:149:2131:00
9:59
+0:25
20M
20.00 mi14:00:253:08:329:2614:18
10:31
+0:32
21M
21.00 mi14:11:433:19:509:3111:18
11:18
+0:47
35K
21.75 mi14:19:243:27:319:337:41
10:16
-1:02
23M
23.00 mi14:31:443:39:519:3412:20
9:51
-0:25
24M
24.00 mi14:41:503:49:579:3510:06
10:06
+0:15
40K
24.85 mi14:50:523:58:599:379:02
10:34
+0:28
25.2M
25.20 mi14:54:424:02:499:383:50
11:07
+0:33
Finish
26.22 mi15:04:384:12:459:399:56
9:45
-1:22

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

8:43 /mi

Average Pace

9:39 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:02

47% of race

Time at Steady Pace

1:26:34

34% of race

Time at Slower Pace

46:09

18% of race

Average Pace: 9:38 /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 mi11:18:5927:068:4327:06
8:43
#21123
10K
6.21 mi11:48:1956:269:0529:20
9:26
#22748
15K
9.32 mi12:16:171:24:249:0327:58
9:00
#22521
20K
12.43 mi12:45:371:53:449:0929:20
9:26
#22592
Half
13.11 mi12:51:552:00:029:096:18
9:14
#22599
25K
15.53 mi13:15:072:23:149:1323:12
9:34
#22508
30K
18.64 mi13:46:072:54:149:2131:00
9:59
#22320
20M
20.00 mi14:00:253:08:329:2614:18
10:31
#22333
21M
21.00 mi14:11:433:19:509:3111:18
11:18
#22303
35K
21.75 mi14:19:243:27:319:337:41
10:16
#22315
23M
23.00 mi14:31:443:39:519:3412:20
9:51
#22172
24M
24.00 mi14:41:503:49:579:3510:06
10:06
#22126
40K
24.85 mi14:50:523:58:599:379:02
10:34
#22135
25.2M
25.20 mi14:54:424:02:499:383:50
11:07
#22107
Finish
26.22 mi15:04:384:12:459:399:56
9:45
#22083
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi211238150815022068(Top 78%)8599(Top 70%)8599(Top 157%)
10K6.21 mi3.10 mi22748-16259017-8679017-86723956(Top 84%)9656(Top 79%)9656(Top 177%)
15K9.32 mi3.11 mi22521+2278869+1488869+14822068(Top 78%)8599(Top 70%)8599(Top 157%)
20K12.43 mi3.11 mi22592-718903-348903-3422725(Top 80%)8987(Top 73%)8987(Top 164%)
Half13.11 mi0.68 mi22599-78907-48907-422760(Top 80%)9014(Top 74%)9014(Top 165%)
25K15.53 mi2.42 mi22508+918866+418866+4122096(Top 78%)8707(Top 71%)8707(Top 159%)
30K18.64 mi3.11 mi22320+1888807+598807+5921547(Top 76%)8522(Top 70%)8522(Top 156%)
20M20.00 mi1.36 mi22333-138836-298836-2922507(Top 79%)9159(Top 75%)9159(Top 167%)
21M21.00 mi1.00 mi22303+308836883622158(Top 78%)9057(Top 74%)9057(Top 166%)
35K21.75 mi0.75 mi22315-128859-238859-2322622(Top 80%)9345(Top 76%)9345(Top 171%)
23M23.00 mi1.25 mi22172+1438817+428817+4219980(Top 70%)8047(Top 66%)8047(Top 147%)
24M24.00 mi1.00 mi22126+468808+98808+921655(Top 76%)8943(Top 73%)8943(Top 164%)
40K24.85 mi0.85 mi22135-98834-268834-2622105(Top 78%)9255(Top 76%)9255(Top 169%)
25.2M25.20 mi0.35 mi22107+288826+88826+821033(Top 74%)8677(Top 71%)8677(Top 159%)
Finish26.22 mi1.02 mi22083+248829-38829-322098(Top 78%)9206(Top 75%)9206(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22068

Females

8599

F18-39

8599

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23956

Females

9656

F18-39

9656

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22068

Females

8599

F18-39

8599

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22725

Females

8987

F18-39

8987

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22760

Females

9014

F18-39

9014

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22096

Females

8707

F18-39

8707

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21547

Females

8522

F18-39

8522

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22507

Females

9159

F18-39

9159

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22158

Females

9057

F18-39

9057

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22622

Females

9345

F18-39

9345

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19980

Females

8047

F18-39

8047

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

21655

Females

8943

F18-39

8943

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22105

Females

9255

F18-39

9255

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21033

Females

8677

F18-39

8677

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22098

Females

9206

F18-39

9206

Passing Analysis

Category:
Athletes Passed
1523
Passed By
2483
Net Change
-960
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21123
5K → 10K191644-1625#21123#22748
10K → 15K30376+227#22748#22521
15K → 20K150221-71#22521#22592
20K → Half3138-7#22592#22599
Half → 25K18291+91#22599#22508
25K → 30K27486+188#22508#22320
30K → 20M6578-13#22320#22333
20M → 21M9363+30#22333#22303
21M → 35K3446-12#22303#22315
35K → 23M15714+143#22315#22172
23M → 24M6115+46#22172#22126
24M → 40K5059-9#22126#22135
40K → 25.2M4214+28#22135#22107
25.2M → Finish6238+24#22107#22083
TOTALS15232483-960
📊

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