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BOSTON MARATHON 2023

Chelsea Daughters

Bib: 17372•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:09
Rank: #12120
Start → 5K
24:09 | 7:46/mi
10K· 6.21 mi
48:17
Rank: #12450 (-330)
5K → 10K
24:08 | 7:46/mi
15K· 9.32 mi
1:12:22
Rank: #12354 (+96)
10K → 15K
24:05 | 7:45/mi
20K· 12.43 mi
1:36:29
Rank: #12076 (+278)
15K → 20K
24:07 | 7:46/mi
Half· 13.11 mi
1:41:47
Rank: #12090 (-14)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:33
Rank: #11809 (+281)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:25:16
Rank: #11543 (+266)
25K → 30K
24:43 | 7:57/mi
20M
2:36:06
Rank: #11400 (+143)
30K → 20M
10:50 | 7:58/mi
21M
2:44:18
Rank: #11203 (+197)
20M → 21M
8:12 | 8:12/mi
35K· 21.75 mi
2:49:58
Rank: #11112 (+91)
21M → 35K
5:40 | 7:34/mi
23M
2:59:44
Rank: #10910 (+202)
35K → 23M
9:46 | 7:48/mi
24M
3:07:21
Rank: #10785 (+125)
23M → 24M
7:37 | 7:37/mi
40K· 24.85 mi
3:14:03
Rank: #10689 (+96)
24M → 40K
6:42 | 7:50/mi
25.2M
3:16:55
Rank: #10637 (+52)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:24:41
Rank: #10556 (+81)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:47
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:42:54
Pace7:51 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4924:097:4624:09
7:46
-
10K
6.21 mi11:42:5748:177:4624:08
7:46
0:00
15K
9.32 mi12:07:021:12:227:4624:05
7:45
-0:01
20K
12.43 mi12:31:091:36:297:4624:07
7:46
+0:01
Half
13.11 mi12:36:271:41:477:465:18
7:46
0:00
25K
15.53 mi12:55:132:00:337:4618:46
7:44
-0:02
30K
18.64 mi13:19:562:25:167:4824:43
7:57
+0:13
20M
20.00 mi13:30:462:36:067:4810:50
7:58
+0:01
21M
21.00 mi13:38:582:44:187:498:12
8:12
+0:14
35K
21.75 mi13:44:382:49:587:495:40
7:34
-0:38
23M
23.00 mi13:54:242:59:447:499:46
7:48
+0:14
24M
24.00 mi14:02:013:07:217:487:37
7:37
-0:11
40K
24.85 mi14:08:433:14:037:486:42
7:50
+0:13
25.2M
25.20 mi14:11:353:16:557:492:52
8:19
+0:29
Finish
26.22 mi14:19:213:24:417:497:46
7:37
-0:42

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

7:34 /mi

Average Pace

7:49 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:04

77% of race

Time at Steady Pace

46:37

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:18:4924:097:4624:09
7:46
#12120
10K
6.21 mi11:42:5748:177:4624:08
7:46
#12450
15K
9.32 mi12:07:021:12:227:4624:05
7:45
#12354
20K
12.43 mi12:31:091:36:297:4624:07
7:46
#12076
Half
13.11 mi12:36:271:41:477:465:18
7:46
#12090
25K
15.53 mi12:55:132:00:337:4618:46
7:44
#11809
30K
18.64 mi13:19:562:25:167:4824:43
7:57
#11543
20M
20.00 mi13:30:462:36:067:4810:50
7:58
#11400
21M
21.00 mi13:38:582:44:187:498:12
8:12
#11203
35K
21.75 mi13:44:382:49:587:495:40
7:34
#11112
23M
23.00 mi13:54:242:59:447:499:46
7:48
#10910
24M
24.00 mi14:02:013:07:217:487:37
7:37
#10785
40K
24.85 mi14:08:433:14:037:486:42
7:50
#10689
25.2M
25.20 mi14:11:353:16:557:492:52
8:19
#10637
Finish
26.22 mi14:19:213:24:417:497:46
7:37
#10556
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121202933293312315(Top 46%)3082(Top 27%)3082(Top 63%)
10K6.21 mi3.10 mi12450-3303129-1963129-19612850(Top 48%)3339(Top 29%)3339(Top 68%)
15K9.32 mi3.11 mi12354+963095+343095+3412315(Top 46%)3082(Top 27%)3082(Top 63%)
20K12.43 mi3.11 mi12076+2782953+1422953+14211422(Top 43%)2643(Top 23%)2643(Top 54%)
Half13.11 mi0.68 mi12090-142971-182971-1812457(Top 47%)3160(Top 28%)3160(Top 65%)
25K15.53 mi2.42 mi11809+2812814+1572814+15710636(Top 40%)2306(Top 20%)2306(Top 47%)
30K18.64 mi3.11 mi11543+2662713+1012713+10110550(Top 40%)2414(Top 21%)2414(Top 49%)
20M20.00 mi1.36 mi11400+1432657+562657+5610091(Top 38%)2273(Top 20%)2273(Top 47%)
21M21.00 mi1.00 mi11203+1972566+912566+918649(Top 32%)1778(Top 16%)1778(Top 36%)
35K21.75 mi0.75 mi11112+912526+402526+409144(Top 34%)1994(Top 17%)1994(Top 41%)
23M23.00 mi1.25 mi10910+2022456+702456+708453(Top 32%)1780(Top 16%)1780(Top 36%)
24M24.00 mi1.00 mi10785+1252415+412415+418558(Top 32%)1910(Top 17%)1910(Top 39%)
40K24.85 mi0.85 mi10689+962396+192396+198937(Top 34%)2153(Top 19%)2153(Top 44%)
25.2M25.20 mi0.35 mi10637+522386+102386+108478(Top 32%)2029(Top 18%)2029(Top 42%)
Finish26.22 mi1.02 mi10556+812375+112375+119447(Top 35%)2452(Top 21%)2452(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12315

Females

3082

F18-39

3082

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12850

Females

3339

F18-39

3339

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12315

Females

3082

F18-39

3082

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11422

Females

2643

F18-39

2643

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12457

Females

3160

F18-39

3160

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10636

Females

2306

F18-39

2306

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10550

Females

2414

F18-39

2414

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10091

Females

2273

F18-39

2273

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8649

Females

1778

F18-39

1778

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9144

Females

1994

F18-39

1994

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8453

Females

1780

F18-39

1780

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8558

Females

1910

F18-39

1910

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8937

Females

2153

F18-39

2153

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8478

Females

2029

F18-39

2029

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9447

Females

2452

F18-39

2452

Passing Analysis

Category:
Athletes Passed
2524
Passed By
960
Net Change
+1564
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12120
5K → 10K177507-330#12120#12450
10K → 15K238142+96#12450#12354
15K → 20K33254+278#12354#12076
20K → Half2135-14#12076#12090
Half → 25K30120+281#12090#11809
25K → 30K32963+266#11809#11543
30K → 20M16421+143#11543#11400
20M → 21M21417+197#11400#11203
21M → 35K976+91#11203#11112
35K → 23M21412+202#11112#10910
23M → 24M14318+125#10910#10785
24M → 40K12024+96#10785#10689
40K → 25.2M6210+52#10689#10637
25.2M → Finish11231+81#10637#10556
TOTALS2524960+1564
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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