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BOSTON MARATHON 2023

Anna Duffey

Bib: 24896•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:09
Rank: #21774
Start → 5K
29:09 | 9:23/mi
10K· 6.21 mi
56:49
Rank: #21226 (+548)
5K → 10K
27:40 | 8:54/mi
15K· 9.32 mi
1:24:38
Rank: #20950 (+276)
10K → 15K
27:49 | 8:57/mi
20K· 12.43 mi
1:52:44
Rank: #20663 (+287)
15K → 20K
28:06 | 9:03/mi
Half· 13.11 mi
1:59:04
Rank: #20700 (-37)
20K → Half
6:20 | 9:17/mi
25K· 15.53 mi
2:22:54
Rank: #20928 (-228)
Half → 25K
23:50 | 9:50/mi
30K· 18.64 mi
2:55:45
Rank: #21256 (-328)
25K → 30K
32:51 | 10:34/mi
20M
3:10:09
Rank: #21302 (-46)
30K → 20M
14:24 | 10:36/mi
21M
3:21:55
Rank: #21390 (-88)
20M → 21M
11:46 | 11:46/mi
35K· 21.75 mi
3:29:31
Rank: #21405 (-15)
21M → 35K
7:36 | 10:10/mi
23M
3:42:57
Rank: #21428 (-23)
35K → 23M
13:26 | 10:44/mi
24M
3:53:27
Rank: #21468 (-40)
23M → 24M
10:30 | 10:30/mi
40K· 24.85 mi
4:02:58
Rank: #21523 (-55)
24M → 40K
9:31 | 11:08/mi
25.2M
4:07:28
Rank: #21595 (-72)
40K → 25.2M
4:30 | 13:03/mi
Finish· 26.22 mi
4:19:05
Rank: #21746 (-151)
25.2M → Finish
11:37 | 11:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:20:01
Pace10:41 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2829:099:2329:09
9:23
-
10K
6.21 mi12:19:0856:499:0927:40
8:54
-0:29
15K
9.32 mi12:46:571:24:389:0527:49
8:57
+0:03
20K
12.43 mi13:15:031:52:449:0428:06
9:03
+0:06
Half
13.11 mi13:21:231:59:049:056:20
9:17
+0:14
25K
15.53 mi13:45:132:22:549:1223:50
9:50
+0:33
30K
18.64 mi14:18:042:55:459:2632:51
10:34
+0:44
20M
20.00 mi14:32:283:10:099:3014:24
10:36
+0:02
21M
21.00 mi14:44:143:21:559:3711:46
11:46
+1:10
35K
21.75 mi14:51:503:29:319:387:36
10:10
-1:36
23M
23.00 mi15:05:163:42:579:4213:26
10:44
+0:34
24M
24.00 mi15:15:463:53:279:4410:30
10:30
-0:14
40K
24.85 mi15:25:174:02:589:479:31
11:08
+0:38
25.2M
25.20 mi15:29:474:07:289:494:30
13:03
+1:55
Finish
26.22 mi15:41:244:19:059:5311:37
11:24
-1:39

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

8:54 /mi

Average Pace

9:53 /mi

Slowest Pace

13:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:54

55% of race

Time at Steady Pace

1:18:47

30% of race

Time at Slower Pace

37:24

14% of race

Average Pace: 9:53 /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 mi11:51:2829:099:2329:09
9:23
#21774
10K
6.21 mi12:19:0856:499:0927:40
8:54
#21226
15K
9.32 mi12:46:571:24:389:0527:49
8:57
#20950
20K
12.43 mi13:15:031:52:449:0428:06
9:03
#20663
Half
13.11 mi13:21:231:59:049:056:20
9:17
#20700
25K
15.53 mi13:45:132:22:549:1223:50
9:50
#20928
30K
18.64 mi14:18:042:55:459:2632:51
10:34
#21256
20M
20.00 mi14:32:283:10:099:3014:24
10:36
#21302
21M
21.00 mi14:44:143:21:559:3711:46
11:46
#21390
35K
21.75 mi14:51:503:29:319:387:36
10:10
#21405
23M
23.00 mi15:05:163:42:579:4213:26
10:44
#21428
24M
24.00 mi15:15:463:53:279:4410:30
10:30
#21468
40K
24.85 mi15:25:174:02:589:479:31
11:08
#21523
25.2M
25.20 mi15:29:474:07:289:494:30
13:03
#21595
Finish
26.22 mi15:41:244:19:059:5311:37
11:24
#21746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi217748775877520292(Top 76%)7841(Top 69%)7841(Top 161%)
10K6.21 mi3.10 mi21226+5488433+3428433+34220453(Top 77%)7953(Top 70%)7953(Top 163%)
15K9.32 mi3.11 mi20950+2768262+1718262+17120292(Top 76%)7841(Top 69%)7841(Top 161%)
20K12.43 mi3.11 mi20663+2878085+1778085+17719915(Top 75%)7632(Top 67%)7632(Top 156%)
Half13.11 mi0.68 mi20700-378107-228107-2221482(Top 81%)8511(Top 75%)8511(Top 174%)
25K15.53 mi2.42 mi20928-2288220-1138220-11321822(Top 82%)8734(Top 76%)8734(Top 179%)
30K18.64 mi3.11 mi21256-3288425-2058425-20522360(Top 84%)9107(Top 80%)9107(Top 186%)
20M20.00 mi1.36 mi21302-468467-428467-4221951(Top 82%)8948(Top 78%)8948(Top 183%)
21M21.00 mi1.00 mi21390-888520-538520-5322363(Top 84%)9200(Top 81%)9200(Top 188%)
35K21.75 mi0.75 mi21405-158536-168536-1621690(Top 81%)8876(Top 78%)8876(Top 182%)
23M23.00 mi1.25 mi21428-238561-258561-2521841(Top 82%)8989(Top 79%)8989(Top 184%)
24M24.00 mi1.00 mi21468-408596-358596-3522046(Top 83%)9122(Top 80%)9122(Top 187%)
40K24.85 mi0.85 mi21523-558638-428638-4222620(Top 85%)9460(Top 83%)9460(Top 194%)
25.2M25.20 mi0.35 mi21595-728683-458683-4524033(Top 90%)10198(Top 89%)10198(Top 209%)
Finish26.22 mi1.02 mi21746-1518765-828765-8224560(Top 92%)10436(Top 91%)10436(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20292

Females

7841

F18-39

7841

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

20453

Females

7953

F18-39

7953

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20292

Females

7841

F18-39

7841

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19915

Females

7632

F18-39

7632

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

21482

Females

8511

F18-39

8511

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21822

Females

8734

F18-39

8734

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22360

Females

9107

F18-39

9107

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21951

Females

8948

F18-39

8948

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22363

Females

9200

F18-39

9200

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

21690

Females

8876

F18-39

8876

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21841

Females

8989

F18-39

8989

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22046

Females

9122

F18-39

9122

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22620

Females

9460

F18-39

9460

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24033

Females

10198

F18-39

10198

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24560

Females

10436

F18-39

10436

Passing Analysis

Category:
Athletes Passed
1681
Passed By
1653
Net Change
+28
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21774
5K → 10K63688+548#21774#21226
10K → 15K34670+276#21226#20950
15K → 20K33245+287#20950#20663
20K → Half1653-37#20663#20700
Half → 25K43271-228#20700#20928
25K → 30K55383-328#20928#21256
30K → 20M56102-46#21256#21302
20M → 21M38126-88#21302#21390
21M → 35K3045-15#21390#21405
35K → 23M5780-23#21405#21428
23M → 24M3171-40#21428#21468
24M → 40K2883-55#21468#21523
40K → 25.2M678-72#21523#21595
25.2M → Finish7158-151#21595#21746
TOTALS16811653+28
📊

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