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BOSTON MARATHON 2023

Sally Davidson

Bib: 14579•F

SC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #12163
Start → 5K
24:10 | 7:47/mi
10K· 6.21 mi
48:10
Rank: #12284 (-121)
5K → 10K
24:00 | 7:43/mi
15K· 9.32 mi
1:11:59
Rank: #11986 (+298)
10K → 15K
23:49 | 7:40/mi
20K· 12.43 mi
1:35:35
Rank: #11458 (+528)
15K → 20K
23:36 | 7:36/mi
Half· 13.11 mi
1:40:43
Rank: #11385 (+73)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:59:00
Rank: #10982 (+403)
Half → 25K
18:17 | 7:32/mi
30K· 18.64 mi
2:22:59
Rank: #10528 (+454)
25K → 30K
23:59 | 7:43/mi
20M
2:32:59
Rank: #10158 (+370)
30K → 20M
10:00 | 7:22/mi
21M
2:40:32
Rank: #9765 (+393)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:45:39
Rank: #9539 (+226)
21M → 35K
5:07 | 6:50/mi
23M
2:54:49
Rank: #9238 (+301)
35K → 23M
9:10 | 7:19/mi
24M
3:01:56
Rank: #9030 (+208)
23M → 24M
7:07 | 7:07/mi
40K· 24.85 mi
3:08:37
Rank: #8996 (+34)
24M → 40K
6:41 | 7:49/mi
25.2M
3:11:44
Rank: #9041 (-45)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:20:18
Rank: #9281 (-240)
25.2M → Finish
8:34 | 8:24/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:43
Pace7:41 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:35
Pace7:36 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1924:107:4724:10
7:47
-
10K
6.21 mi11:17:1948:107:4524:00
7:43
-0:04
15K
9.32 mi11:41:081:11:597:4323:49
7:40
-0:03
20K
12.43 mi12:04:441:35:357:4123:36
7:36
-0:04
Half
13.11 mi12:09:521:40:437:415:08
7:31
-0:05
25K
15.53 mi12:28:091:59:007:4018:17
7:32
+0:01
30K
18.64 mi12:52:082:22:597:4023:59
7:43
+0:11
20M
20.00 mi13:02:082:32:597:3910:00
7:22
-0:21
21M
21.00 mi13:09:412:40:327:397:33
7:33
+0:11
35K
21.75 mi13:14:482:45:397:375:07
6:50
-0:43
23M
23.00 mi13:23:582:54:497:369:10
7:19
+0:29
24M
24.00 mi13:31:053:01:567:357:07
7:07
-0:12
40K
24.85 mi13:37:463:08:377:356:41
7:49
+0:42
25.2M
25.20 mi13:40:533:11:447:373:07
9:02
+1:13
Finish
26.22 mi13:49:273:20:187:398:34
8:24
-0:38

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

6:50 /mi

Average Pace

7:39 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:24

11% of race

Time at Steady Pace

2:47:13

83% of race

Time at Slower Pace

11:41

6% of race

Average Pace: 7:38 /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 mi10:53:1924:107:4724:10
7:47
#12163
10K
6.21 mi11:17:1948:107:4524:00
7:43
#12284
15K
9.32 mi11:41:081:11:597:4323:49
7:40
#11986
20K
12.43 mi12:04:441:35:357:4123:36
7:36
#11458
Half
13.11 mi12:09:521:40:437:415:08
7:31
#11385
25K
15.53 mi12:28:091:59:007:4018:17
7:32
#10982
30K
18.64 mi12:52:082:22:597:4023:59
7:43
#10528
20M
20.00 mi13:02:082:32:597:3910:00
7:22
#10158
21M
21.00 mi13:09:412:40:327:397:33
7:33
#9765
35K
21.75 mi13:14:482:45:397:375:07
6:50
#9539
23M
23.00 mi13:23:582:54:497:369:10
7:19
#9238
24M
24.00 mi13:31:053:01:567:357:07
7:07
#9030
40K
24.85 mi13:37:463:08:377:356:41
7:49
#8996
25.2M
25.20 mi13:40:533:11:447:373:07
9:02
#9041
Finish
26.22 mi13:49:273:20:187:398:34
8:24
#9281
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121632953295311557(Top 43%)2655(Top 23%)2655(Top 54%)
10K6.21 mi3.10 mi12284-1213024-713024-7112467(Top 47%)3123(Top 27%)3123(Top 64%)
15K9.32 mi3.11 mi11986+2982883+1412883+14111557(Top 43%)2655(Top 23%)2655(Top 54%)
20K12.43 mi3.11 mi11458+5282591+2922591+29210072(Top 38%)1945(Top 17%)1945(Top 40%)
Half13.11 mi0.68 mi11385+732554+372554+3710442(Top 39%)2097(Top 18%)2097(Top 43%)
25K15.53 mi2.42 mi10982+4032340+2142340+2149106(Top 34%)1599(Top 14%)1599(Top 33%)
30K18.64 mi3.11 mi10528+4542167+1732167+1738797(Top 33%)1630(Top 14%)1630(Top 33%)
20M20.00 mi1.36 mi10158+3702004+1632004+1635992(Top 23%)710(Top 6%)710(Top 15%)
21M21.00 mi1.00 mi9765+3931834+1701834+1704862(Top 18%)489(Top 4%)489(Top 10%)
35K21.75 mi0.75 mi9539+2261760+741760+744509(Top 17%)405(Top 4%)405(Top 8%)
23M23.00 mi1.25 mi9238+3011670+901670+905457(Top 20%)656(Top 6%)656(Top 13%)
24M24.00 mi1.00 mi9030+2081609+611609+615324(Top 20%)668(Top 6%)668(Top 14%)
40K24.85 mi0.85 mi8996+341611-21611-28809(Top 33%)2086(Top 18%)2086(Top 43%)
25.2M25.20 mi0.35 mi9041-451636-251636-2512743(Top 48%)4076(Top 36%)4076(Top 83%)
Finish26.22 mi1.02 mi9281-2401766-1301766-13014786(Top 56%)5135(Top 45%)5135(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11557

Females

2655

F18-39

2655

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12467

Females

3123

F18-39

3123

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11557

Females

2655

F18-39

2655

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10072

Females

1945

F18-39

1945

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10442

Females

2097

F18-39

2097

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9106

Females

1599

F18-39

1599

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8797

Females

1630

F18-39

1630

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

5992

Females

710

F18-39

710

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4862

Females

489

F18-39

489

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4509

Females

405

F18-39

405

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5457

Females

656

F18-39

656

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5324

Females

668

F18-39

668

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8809

Females

2086

F18-39

2086

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12743

Females

4076

F18-39

4076

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14786

Females

5135

F18-39

5135

Passing Analysis

Category:
Athletes Passed
3725*
Passed By
843
Net Change
+2882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12163
5K → 10K259380-121#12163#12284
10K → 15K37173+298#12284#11986
15K → 20K54618+528#11986#11458
20K → Half785+73#11458#11385
Half → 25K4063+403#11385#10982
25K → 30K47319+454#10982#10528
30K → 20M372*2+370#10528#10158
20M → 21M393*0+393#10158#9765
21M → 35K2260+226#9765#9539
35K → 23M3032+301#9539#9238
23M → 24M2102+208#9238#9030
24M → 40K6531+34#9030#8996
40K → 25.2M1156-45#8996#9041
25.2M → Finish12252-240#9041#9281
TOTALS3725*843+2882

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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