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BOSTON MARATHON 2023

Chelsea Eaton

Bib: 17750•F

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0:00
0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 32%
Division (F18-39)
#0 / 4884
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:51/mi
49:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:13:38
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:38:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:43:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:02:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:15/mi
2:28:23
↑ 181↓ 1480.2%
20M
8:24/mi
2:39:48
↑ 64↓ 500.2%
21M
8:50/mi
2:48:38
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:54:36
↑ 17↓ 861.7%
23M
8:26/mi
3:05:10
↑ 23↓ 630.6%
24M
8:16/mi
3:13:26
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:20:46
↓ 200.3%
25.2M
9:08/mi
3:23:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:32:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:48:44
Pace8:18 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4024:487:5924:48
7:59
-
10K
6.21 mi11:40:0449:127:5524:24
7:51
-0:08
15K
9.32 mi12:04:301:13:387:5424:26
7:52
+0:01
20K
12.43 mi12:29:031:38:117:5424:33
7:54
+0:02
Half
13.11 mi12:34:241:43:327:545:21
7:50
-0:04
25K
15.53 mi12:53:362:02:447:5419:12
7:55
+0:05
30K
18.64 mi13:19:152:28:237:5825:39
8:15
+0:20
20M
20.00 mi13:30:402:39:487:5911:25
8:24
+0:09
21M
21.00 mi13:39:302:48:388:028:50
8:50
+0:26
35K
21.75 mi13:45:282:54:368:025:58
7:59
-0:51
23M
23.00 mi13:56:023:05:108:0310:34
8:26
+0:27
24M
24.00 mi14:04:183:13:268:048:16
8:16
-0:10
40K
24.85 mi14:11:383:20:468:057:20
8:35
+0:19
25.2M
25.20 mi14:14:473:23:558:063:09
9:08
+0:33
Finish
26.22 mi14:23:083:32:168:068:21
8:12
-0:56

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

7:50 /mi

Average Pace

8:06 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:17

94% of race

Time at Steady Pace

11:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:15:4024:487:5924:48
7:59
#13914
10K
6.21 mi11:40:0449:127:5524:24
7:51
#13736
15K
9.32 mi12:04:301:13:387:5424:26
7:52
#13581
20K
12.43 mi12:29:031:38:117:5424:33
7:54
#13331
Half
13.11 mi12:34:241:43:327:545:21
7:50
#13303
25K
15.53 mi12:53:362:02:447:5419:12
7:55
#13050
30K
18.64 mi13:19:152:28:237:5825:39
8:15
#12990
20M
20.00 mi13:30:402:39:487:5911:25
8:24
#12974
21M
21.00 mi13:39:302:48:388:028:50
8:50
#12906
35K
21.75 mi13:45:282:54:368:025:58
7:59
#12852
23M
23.00 mi13:56:023:05:108:0310:34
8:26
#12851
24M
24.00 mi14:04:183:13:268:048:16
8:16
#12845
40K
24.85 mi14:11:383:20:468:057:20
8:35
#12859
25.2M
25.20 mi14:14:473:23:558:063:09
9:08
#12868
Finish
26.22 mi14:23:083:32:168:068:21
8:12
#12872
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139143977397713250(Top 50%)3639(Top 32%)3639(Top 75%)
10K6.21 mi3.10 mi13736+1783892+853892+8513617(Top 51%)3806(Top 33%)3806(Top 78%)
15K9.32 mi3.11 mi13581+1553810+823810+8213250(Top 50%)3639(Top 32%)3639(Top 75%)
20K12.43 mi3.11 mi13331+2503681+1293681+12912664(Top 48%)3365(Top 29%)3365(Top 69%)
Half13.11 mi0.68 mi13303+283665+163665+1613217(Top 50%)3650(Top 32%)3650(Top 75%)
25K15.53 mi2.42 mi13050+2533525+1403525+14012082(Top 45%)3131(Top 27%)3131(Top 64%)
30K18.64 mi3.11 mi12990+603542-173542-1712744(Top 48%)3610(Top 32%)3610(Top 74%)
20M20.00 mi1.36 mi12974+163554-123554-1213064(Top 49%)3900(Top 34%)3900(Top 80%)
21M21.00 mi1.00 mi12906+683533+213533+2112494(Top 47%)3693(Top 32%)3693(Top 76%)
35K21.75 mi0.75 mi12852+543519+143519+1412043(Top 45%)3474(Top 30%)3474(Top 71%)
23M23.00 mi1.25 mi12851+13539-203539-2012895(Top 48%)4019(Top 35%)4019(Top 82%)
24M24.00 mi1.00 mi12845+63559-203559-2013116(Top 49%)4204(Top 37%)4204(Top 86%)
40K24.85 mi0.85 mi12859-143586-273586-2713877(Top 52%)4688(Top 41%)4688(Top 96%)
25.2M25.20 mi0.35 mi12868-93604-183604-1813417(Top 50%)4483(Top 39%)4483(Top 92%)
Finish26.22 mi1.02 mi12872-43627-233627-2313444(Top 50%)4448(Top 39%)4448(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13250

Females

3639

F18-39

3639

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13617

Females

3806

F18-39

3806

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13250

Females

3639

F18-39

3639

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12664

Females

3365

F18-39

3365

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13217

Females

3650

F18-39

3650

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12082

Females

3131

F18-39

3131

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12744

Females

3610

F18-39

3610

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13064

Females

3900

F18-39

3900

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12494

Females

3693

F18-39

3693

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12043

Females

3474

F18-39

3474

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12895

Females

4019

F18-39

4019

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13116

Females

4204

F18-39

4204

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13877

Females

4688

F18-39

4688

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13417

Females

4483

F18-39

4483

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13444

Females

4448

F18-39

4448

Passing Analysis

Category:
Athletes Passed
2145
Passed By
1103
Net Change
+1042
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13914
5K → 10K392214+178#13914#13736
10K → 15K267112+155#13736#13581
15K → 20K31767+250#13581#13331
20K → Half4517+28#13331#13303
Half → 25K29340+253#13303#13050
25K → 30K216156+60#13050#12990
30K → 20M10488+16#12990#12974
20M → 21M13062+68#12974#12906
21M → 35K7824+54#12906#12852
35K → 23M7877+1#12852#12851
23M → 24M7872+6#12851#12845
24M → 40K6276-14#12845#12859
40K → 25.2M2029-9#12859#12868
25.2M → Finish6569-4#12868#12872
TOTALS21451103+1042
📊

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