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BOSTON MARATHON 2023

Susannah Davies

Bib: 14642•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:37
Rank: #10556
Start → 5K
23:37 | 7:36/mi
10K· 6.21 mi
46:42
Rank: #10188 (+368)
5K → 10K
23:05 | 7:26/mi
15K· 9.32 mi
1:09:14
Rank: #9418 (+770)
10K → 15K
22:32 | 7:15/mi
20K· 12.43 mi
1:31:38
Rank: #8795 (+623)
15K → 20K
22:24 | 7:13/mi
Half· 13.11 mi
1:36:26
Rank: #8681 (+114)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:53:56
Rank: #8338 (+343)
Half → 25K
17:30 | 7:13/mi
30K· 18.64 mi
2:16:09
Rank: #7660 (+678)
25K → 30K
22:13 | 7:09/mi
20M
2:25:46
Rank: #7369 (+291)
30K → 20M
9:37 | 7:05/mi
21M
2:33:19
Rank: #7195 (+174)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:38:21
Rank: #7033 (+162)
21M → 35K
5:02 | 6:44/mi
23M
2:47:15
Rank: #6820 (+213)
35K → 23M
8:54 | 7:06/mi
24M
2:54:09
Rank: #6666 (+154)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
3:00:12
Rank: #6528 (+138)
24M → 40K
6:03 | 7:05/mi
25.2M
3:02:52
Rank: #6481 (+47)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:09:58
Rank: #6421 (+60)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:36:26
Pace7:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:32
Pace7:08 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5023:377:3623:37
7:36
-
10K
6.21 mi11:15:5546:427:3123:05
7:26
-0:10
15K
9.32 mi11:38:271:09:147:2622:32
7:15
-0:11
20K
12.43 mi12:00:511:31:387:2222:24
7:13
-0:02
Half
13.11 mi12:05:391:36:267:214:48
7:02
-0:11
25K
15.53 mi12:23:091:53:567:2017:30
7:13
+0:11
30K
18.64 mi12:45:222:16:097:1822:13
7:09
-0:04
20M
20.00 mi12:54:592:25:467:179:37
7:05
-0:04
21M
21.00 mi13:02:322:33:197:187:33
7:33
+0:28
35K
21.75 mi13:07:342:38:217:175:02
6:44
-0:49
23M
23.00 mi13:16:282:47:157:168:54
7:06
+0:22
24M
24.00 mi13:23:222:54:097:156:54
6:54
-0:12
40K
24.85 mi13:29:253:00:127:156:03
7:05
+0:11
25.2M
25.20 mi13:32:053:02:527:152:40
7:44
+0:39
Finish
26.22 mi13:39:113:09:587:157:06
6:58
-0:46

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

6:44 /mi

Average Pace

7:15 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:03

70% of race

Time at Steady Pace

56:55

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:52:5023:377:3623:37
7:36
#10556
10K
6.21 mi11:15:5546:427:3123:05
7:26
#10188
15K
9.32 mi11:38:271:09:147:2622:32
7:15
#9418
20K
12.43 mi12:00:511:31:387:2222:24
7:13
#8795
Half
13.11 mi12:05:391:36:267:214:48
7:02
#8681
25K
15.53 mi12:23:091:53:567:2017:30
7:13
#8338
30K
18.64 mi12:45:222:16:097:1822:13
7:09
#7660
20M
20.00 mi12:54:592:25:467:179:37
7:05
#7369
21M
21.00 mi13:02:322:33:197:187:33
7:33
#7195
35K
21.75 mi13:07:342:38:217:175:02
6:44
#7033
23M
23.00 mi13:16:282:47:157:168:54
7:06
#6820
24M
24.00 mi13:23:222:54:097:156:54
6:54
#6666
40K
24.85 mi13:29:253:00:127:156:03
7:05
#6528
25.2M
25.20 mi13:32:053:02:527:152:40
7:44
#6481
Finish
26.22 mi13:39:113:09:587:157:06
6:58
#6421
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10556210821088181(Top 31%)1126(Top 10%)1126(Top 23%)
10K6.21 mi3.10 mi10188+3681920+1881920+1889891(Top 37%)1763(Top 15%)1763(Top 36%)
15K9.32 mi3.11 mi9418+7701584+3361584+3368181(Top 31%)1126(Top 10%)1126(Top 23%)
20K12.43 mi3.11 mi8795+6231350+2341350+2347168(Top 27%)826(Top 7%)826(Top 17%)
Half13.11 mi0.68 mi8681+1141308+421308+426811(Top 26%)708(Top 6%)708(Top 14%)
25K15.53 mi2.42 mi8338+3431200+1081200+1086789(Top 26%)780(Top 7%)780(Top 16%)
30K18.64 mi3.11 mi7660+678980+220980+2205235(Top 20%)450(Top 4%)450(Top 9%)
20M20.00 mi1.36 mi7369+291904+76904+764512(Top 17%)371(Top 3%)371(Top 8%)
21M21.00 mi1.00 mi7195+174859+45859+454855(Top 18%)482(Top 4%)482(Top 10%)
35K21.75 mi0.75 mi7033+162815+44815+443792(Top 14%)302(Top 3%)302(Top 6%)
23M23.00 mi1.25 mi6820+213780+35780+354371(Top 16%)388(Top 3%)388(Top 8%)
24M24.00 mi1.00 mi6666+154757+23757+234205(Top 16%)381(Top 3%)381(Top 8%)
40K24.85 mi0.85 mi6528+138731+26731+264285(Top 16%)476(Top 4%)476(Top 10%)
25.2M25.20 mi0.35 mi6481+47727+4727+45103(Top 19%)748(Top 7%)748(Top 15%)
Finish26.22 mi1.02 mi6421+60719+8719+85044(Top 19%)742(Top 6%)742(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8181

Females

1126

F18-39

1126

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9891

Females

1763

F18-39

1763

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8181

Females

1126

F18-39

1126

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7168

Females

826

F18-39

826

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6811

Females

708

F18-39

708

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6789

Females

780

F18-39

780

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5235

Females

450

F18-39

450

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4512

Females

371

F18-39

371

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4855

Females

482

F18-39

482

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3792

Females

302

F18-39

302

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4371

Females

388

F18-39

388

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4205

Females

381

F18-39

381

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4285

Females

476

F18-39

476

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5103

Females

748

F18-39

748

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5044

Females

742

F18-39

742

Passing Analysis

Category:
Athletes Passed
4338*
Passed By
203
Net Change
+4135
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10556
5K → 10K519*151+368#10556#10188
10K → 15K779*9+770#10188#9418
15K → 20K6252+623#9418#8795
20K → Half1140+114#8795#8681
Half → 25K3463+343#8681#8338
25K → 30K6780+678#8338#7660
30K → 20M2921+291#7660#7369
20M → 21M1784+174#7369#7195
21M → 35K1620+162#7195#7033
35K → 23M2152+213#7033#6820
23M → 24M1573+154#6820#6666
24M → 40K1424+138#6666#6528
40K → 25.2M536+47#6528#6481
25.2M → Finish7818+60#6481#6421
TOTALS4338*203+4135

* 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