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BOSTON MARATHON 2023

Amy O'Sullivan

Bib: 9088•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:36
Rank: #3105
Start → 5K
20:36 | 6:38/mi
10K· 6.21 mi
40:58
Rank: #3118 (-13)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:24
Rank: #3109 (+9)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:21:47
Rank: #2943 (+166)
15K → 20K
20:23 | 6:34/mi
Half· 13.11 mi
1:26:12
Rank: #2925 (+18)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:15
Rank: #2882 (+43)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:04:04
Rank: #3078 (-196)
25K → 30K
21:49 | 7:01/mi
20M
2:14:01
Rank: #3296 (-218)
30K → 20M
9:57 | 7:19/mi
21M
2:21:55
Rank: #3525 (-229)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:27:04
Rank: #3555 (-30)
21M → 35K
5:09 | 6:53/mi
23M
2:36:07
Rank: #3633 (-78)
35K → 23M
9:03 | 7:14/mi
24M
2:43:10
Rank: #3718 (-85)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:49:32
Rank: #3858 (-140)
24M → 40K
6:22 | 7:27/mi
25.2M
2:52:15
Rank: #3904 (-46)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:59:21
Rank: #3977 (-73)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:12
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:33:09
Pace7:06 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0020:366:3820:36
6:38
-
10K
6.21 mi11:06:2240:586:3620:22
6:33
-0:05
15K
9.32 mi11:26:481:01:246:3520:26
6:35
+0:02
20K
12.43 mi11:47:111:21:476:3520:23
6:34
-0:01
Half
13.11 mi11:51:361:26:126:354:25
6:28
-0:06
25K
15.53 mi12:07:391:42:156:3516:03
6:37
+0:09
30K
18.64 mi12:29:282:04:046:3921:49
7:01
+0:24
20M
20.00 mi12:39:252:14:016:429:57
7:19
+0:18
21M
21.00 mi12:47:192:21:556:457:54
7:54
+0:35
35K
21.75 mi12:52:282:27:046:465:09
6:53
-1:01
23M
23.00 mi13:01:312:36:076:479:03
7:14
+0:21
24M
24.00 mi13:08:342:43:106:487:03
7:03
-0:11
40K
24.85 mi13:14:562:49:326:496:22
7:27
+0:24
25.2M
25.20 mi13:17:392:52:156:502:43
7:53
+0:26
Finish
26.22 mi13:24:452:59:216:517:06
6:58
-0:55

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

6:28 /mi

Average Pace

6:51 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:15

57% of race

Time at Steady Pace

41:07

23% of race

Time at Slower Pace

35:59

20% of race

Average Pace: 6:50 /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 mi10:46:0020:366:3820:36
6:38
#3105
10K
6.21 mi11:06:2240:586:3620:22
6:33
#3118
15K
9.32 mi11:26:481:01:246:3520:26
6:35
#3109
20K
12.43 mi11:47:111:21:476:3520:23
6:34
#2943
Half
13.11 mi11:51:361:26:126:354:25
6:28
#2925
25K
15.53 mi12:07:391:42:156:3516:03
6:37
#2882
30K
18.64 mi12:29:282:04:046:3921:49
7:01
#3078
20M
20.00 mi12:39:252:14:016:429:57
7:19
#3296
21M
21.00 mi12:47:192:21:556:457:54
7:54
#3525
35K
21.75 mi12:52:282:27:046:465:09
6:53
#3555
23M
23.00 mi13:01:312:36:076:479:03
7:14
#3633
24M
24.00 mi13:08:342:43:106:487:03
7:03
#3718
40K
24.85 mi13:14:562:49:326:496:22
7:27
#3858
25.2M
25.20 mi13:17:392:52:156:502:43
7:53
#3904
Finish
26.22 mi13:24:452:59:216:517:06
6:58
#3977
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi31051641643133(Top 12%)148(Top 1%)148(Top 3%)
10K6.21 mi3.10 mi3118-13153+11153+113183(Top 12%)147(Top 1%)147(Top 3%)
15K9.32 mi3.11 mi3109+9145+8145+83133(Top 12%)148(Top 1%)148(Top 3%)
20K12.43 mi3.11 mi2943+166129+16129+162628(Top 10%)114(Top 1.0%)114(Top 2%)
Half13.11 mi0.68 mi2925+18130-1130-12708(Top 10%)113(Top 1.0%)113(Top 2%)
25K15.53 mi2.42 mi2882+43125+5125+52837(Top 11%)127(Top 1%)127(Top 3%)
30K18.64 mi3.11 mi3078-196143-18143-184507(Top 17%)330(Top 3%)330(Top 7%)
20M20.00 mi1.36 mi3296-218171-28171-285775(Top 22%)637(Top 6%)637(Top 13%)
21M21.00 mi1.00 mi3525-229183-12183-126746(Top 25%)1027(Top 9%)1027(Top 21%)
35K21.75 mi0.75 mi3555-30187-4187-44717(Top 18%)434(Top 4%)434(Top 9%)
23M23.00 mi1.25 mi3633-78201-14201-144951(Top 19%)515(Top 5%)515(Top 11%)
24M24.00 mi1.00 mi3718-85216-15216-154936(Top 19%)546(Top 5%)546(Top 11%)
40K24.85 mi0.85 mi3858-140233-17233-176380(Top 24%)1098(Top 10%)1098(Top 22%)
25.2M25.20 mi0.35 mi3904-46243-10243-105847(Top 22%)978(Top 9%)978(Top 20%)
Finish26.22 mi1.02 mi3977-73253-10253-105030(Top 19%)728(Top 6%)728(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3133

Females

148

F18-39

148

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3183

Females

147

F18-39

147

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3133

Females

148

F18-39

148

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2628

Females

114

F18-39

114

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2708

Females

113

F18-39

113

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2837

Females

127

F18-39

127

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4507

Females

330

F18-39

330

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5775

Females

637

F18-39

637

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6746

Females

1027

F18-39

1027

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4717

Females

434

F18-39

434

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

4951

Females

515

F18-39

515

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4936

Females

546

F18-39

546

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6380

Females

1098

F18-39

1098

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5847

Females

978

F18-39

978

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5030

Females

728

F18-39

728

Passing Analysis

Category:
Athletes Passed
756
Passed By
1628
Net Change
-872
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3105
5K → 10K146159-13#3105#3118
10K → 15K9283+9#3118#3109
15K → 20K19327+166#3109#2943
20K → Half246+18#2943#2925
Half → 25K8542+43#2925#2882
25K → 30K39235-196#2882#3078
30K → 20M17235-218#3078#3296
20M → 21M10239-229#3296#3525
21M → 35K2858-30#3525#3555
35K → 23M39117-78#3555#3633
23M → 24M23108-85#3633#3718
24M → 40K23163-140#3718#3858
40K → 25.2M1561-46#3858#3904
25.2M → Finish2295-73#3904#3977
TOTALS7561628-872
📊

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