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BOSTON MARATHON 2025

Ellie Chesterman

Bib: 29742•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
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
8:09/mi
25:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:15:53
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:41:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:47:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:07:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:35:03
↑ 181↓ 1480.2%
20M
8:34/mi
2:46:41
↑ 64↓ 500.2%
21M
8:50/mi
2:55:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
3:01:55
↑ 17↓ 861.7%
23M
8:46/mi
3:12:54
↑ 23↓ 630.6%
24M
8:41/mi
3:21:35
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:29:13
↓ 200.3%
25.2M
9:25/mi
3:32:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:41:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:19
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:53:41
Pace8:40 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:1425:188:0925:18
8:09
-
10K
6.21 mi12:09:2350:278:0725:09
8:06
-0:03
15K
9.32 mi12:34:491:15:538:0825:26
8:11
+0:05
20K
12.43 mi13:00:371:41:418:1125:48
8:18
+0:07
Half
13.11 mi13:06:151:47:198:115:38
8:15
-0:03
25K
15.53 mi13:26:492:07:538:1420:34
8:29
+0:14
30K
18.64 mi13:53:592:35:038:1927:10
8:45
+0:16
20M
20.00 mi14:05:372:46:418:2011:38
8:34
-0:11
21M
21.00 mi14:14:272:55:318:218:50
8:50
+0:16
35K
21.75 mi14:20:513:01:558:226:24
8:33
-0:17
23M
23.00 mi14:31:503:12:548:2310:59
8:46
+0:13
24M
24.00 mi14:40:313:21:358:248:41
8:41
-0:05
40K
24.85 mi14:48:093:29:138:257:38
8:56
+0:15
25.2M
25.20 mi14:51:243:32:288:263:15
9:25
+0:29
Finish
26.22 mi14:59:563:41:008:268:32
8:22
-1:03

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

8:06 /mi

Average Pace

8:26 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:07

95% of race

Time at Steady Pace

10:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:44:1425:188:0925:18
8:09
#17690
10K
6.21 mi12:09:2350:278:0725:09
8:06
#17405
15K
9.32 mi12:34:491:15:538:0825:26
8:11
#17368
20K
12.43 mi13:00:371:41:418:1125:48
8:18
#17229
Half
13.11 mi13:06:151:47:198:115:38
8:15
#17235
25K
15.53 mi13:26:492:07:538:1420:34
8:29
#17161
30K
18.64 mi13:53:592:35:038:1927:10
8:45
#16937
20M
20.00 mi14:05:372:46:418:2011:38
8:34
#16731
21M
21.00 mi14:14:272:55:318:218:50
8:50
#16444
35K
21.75 mi14:20:513:01:558:226:24
8:33
#16387
23M
23.00 mi14:31:503:12:548:2310:59
8:46
#16245
24M
24.00 mi14:40:313:21:358:248:41
8:41
#16192
40K
24.85 mi14:48:093:29:138:257:38
8:56
#16193
25.2M
25.20 mi14:51:243:32:288:263:15
9:25
#16153
Finish
26.22 mi14:59:563:41:008:268:32
8:22
#16120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi176906146614617317(Top 61%)5908(Top 48%)5908(Top 108%)
10K6.21 mi3.10 mi17405+2855977+1695977+16917166(Top 60%)5796(Top 47%)5796(Top 106%)
15K9.32 mi3.11 mi17368+375933+445933+4417317(Top 61%)5908(Top 48%)5908(Top 108%)
20K12.43 mi3.11 mi17229+1395875+585875+5816960(Top 60%)5753(Top 47%)5753(Top 105%)
Half13.11 mi0.68 mi17235-65884-95884-917669(Top 62%)6123(Top 50%)6123(Top 112%)
25K15.53 mi2.42 mi17161+745863+215863+2117084(Top 60%)5897(Top 48%)5897(Top 108%)
30K18.64 mi3.11 mi16937+2245776+875776+8716269(Top 57%)5617(Top 46%)5617(Top 103%)
20M20.00 mi1.36 mi16731+2065680+965680+9614200(Top 50%)4622(Top 38%)4622(Top 85%)
21M21.00 mi1.00 mi16444+2875554+1265554+12612565(Top 44%)3912(Top 32%)3912(Top 72%)
35K21.75 mi0.75 mi16387+575534+205534+2015824(Top 56%)5681(Top 46%)5681(Top 104%)
23M23.00 mi1.25 mi16245+1425490+445490+4414982(Top 53%)5328(Top 44%)5328(Top 97%)
24M24.00 mi1.00 mi16192+535494-45494-415654(Top 55%)5720(Top 47%)5720(Top 105%)
40K24.85 mi0.85 mi16193-15510-165510-1615912(Top 56%)5992(Top 49%)5992(Top 110%)
25.2M25.20 mi0.35 mi16153+405500+105500+1014235(Top 50%)5155(Top 42%)5155(Top 94%)
Finish26.22 mi1.02 mi16120+335500550015413(Top 54%)5702(Top 47%)5702(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17317

Females

5908

F18-39

5908

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17166

Females

5796

F18-39

5796

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17317

Females

5908

F18-39

5908

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16960

Females

5753

F18-39

5753

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17669

Females

6123

F18-39

6123

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17084

Females

5897

F18-39

5897

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16269

Females

5617

F18-39

5617

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14200

Females

4622

F18-39

4622

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12565

Females

3912

F18-39

3912

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15824

Females

5681

F18-39

5681

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14982

Females

5328

F18-39

5328

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15654

Females

5720

F18-39

5720

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15912

Females

5992

F18-39

5992

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14235

Females

5155

F18-39

5155

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15413

Females

5702

F18-39

5702

Passing Analysis

Category:
Athletes Passed
2558
Passed By
988
Net Change
+1570
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17690
5K → 10K449164+285#17690#17405
10K → 15K228191+37#17405#17368
15K → 20K246107+139#17368#17229
20K → Half2834-6#17229#17235
Half → 25K198124+74#17235#17161
25K → 30K326102+224#17161#16937
30K → 20M22317+206#16937#16731
20M → 21M2892+287#16731#16444
21M → 35K8831+57#16444#16387
35K → 23M18442+142#16387#16245
23M → 24M9744+53#16245#16192
24M → 40K6364-1#16192#16193
40K → 25.2M5313+40#16193#16153
25.2M → Finish8653+33#16153#16120
TOTALS2558988+1570
📊

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