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BOSTON MARATHON 2023

Heather Fox

Bib: 23293•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:26
Rank: #21057
Start → 5K
28:26 | 9:09/mi
10K· 6.21 mi
56:31
Rank: #21032 (+25)
5K → 10K
28:05 | 9:02/mi
15K· 9.32 mi
1:24:46
Rank: #21019 (+13)
10K → 15K
28:15 | 9:06/mi
20K· 12.43 mi
1:53:25
Rank: #20902 (+117)
15K → 20K
28:39 | 9:13/mi
Half· 13.11 mi
1:59:44
Rank: #20920 (-18)
20K → Half
6:19 | 9:16/mi
25K· 15.53 mi
2:22:58
Rank: #20948 (-28)
Half → 25K
23:14 | 9:35/mi
30K· 18.64 mi
2:53:54
Rank: #20930 (+18)
25K → 30K
30:56 | 9:57/mi
20M
3:07:50
Rank: #20925 (+5)
30K → 20M
13:56 | 10:15/mi
21M
3:18:57
Rank: #20932 (-7)
20M → 21M
11:07 | 11:07/mi
35K· 21.75 mi
3:25:53
Rank: #20858 (+74)
21M → 35K
6:56 | 9:16/mi
23M
3:39:24
Rank: #20919 (-61)
35K → 23M
13:31 | 10:48/mi
24M
3:49:34
Rank: #20937 (-18)
23M → 24M
10:10 | 10:10/mi
40K· 24.85 mi
3:58:44
Rank: #20960 (-23)
24M → 40K
9:10 | 10:43/mi
25.2M
4:02:57
Rank: #21019 (-59)
40K → 25.2M
4:13 | 12:14/mi
Finish· 26.22 mi
4:13:15
Rank: #21058 (-39)
25.2M → Finish
10:18 | 10:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:44
Pace9:08 /mi
2nd Half
Distance13.11 mi
Time2:13:31
Pace10:11 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3628:269:0928:26
9:09
-
10K
6.21 mi11:52:4156:319:0628:05
9:02
-0:07
15K
9.32 mi12:20:561:24:469:0628:15
9:06
+0:04
20K
12.43 mi12:49:351:53:259:0828:39
9:13
+0:07
Half
13.11 mi12:55:541:59:449:086:19
9:16
+0:03
25K
15.53 mi13:19:082:22:589:1223:14
9:35
+0:19
30K
18.64 mi13:50:042:53:549:2030:56
9:57
+0:22
20M
20.00 mi14:04:003:07:509:2313:56
10:15
+0:18
21M
21.00 mi14:15:073:18:579:2811:07
11:07
+0:52
35K
21.75 mi14:22:033:25:539:286:56
9:16
-1:51
23M
23.00 mi14:35:343:39:249:3213:31
10:48
+1:32
24M
24.00 mi14:45:443:49:349:3410:10
10:10
-0:38
40K
24.85 mi14:54:543:58:449:369:10
10:43
+0:33
25.2M
25.20 mi14:59:074:02:579:384:13
12:14
+1:31
Finish
26.22 mi15:09:254:13:159:4010:18
10:06
-2:08

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

9:02 /mi

Average Pace

9:40 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:40

50% of race

Time at Steady Pace

1:28:34

35% of race

Time at Slower Pace

38:01

15% of race

Average Pace: 9:40 /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 mi11:24:3628:269:0928:26
9:09
#21057
10K
6.21 mi11:52:4156:319:0628:05
9:02
#21032
15K
9.32 mi12:20:561:24:469:0628:15
9:06
#21019
20K
12.43 mi12:49:351:53:259:0828:39
9:13
#20902
Half
13.11 mi12:55:541:59:449:086:19
9:16
#20920
25K
15.53 mi13:19:082:22:589:1223:14
9:35
#20948
30K
18.64 mi13:50:042:53:549:2030:56
9:57
#20930
20M
20.00 mi14:04:003:07:509:2313:56
10:15
#20925
21M
21.00 mi14:15:073:18:579:2811:07
11:07
#20932
35K
21.75 mi14:22:033:25:539:286:56
9:16
#20858
23M
23.00 mi14:35:343:39:249:3213:31
10:48
#20919
24M
24.00 mi14:45:443:49:349:3410:10
10:10
#20937
40K
24.85 mi14:54:543:58:449:369:10
10:43
#20960
25.2M
25.20 mi14:59:074:02:579:384:13
12:14
#21019
Finish
26.22 mi15:09:254:13:159:4010:18
10:06
#21058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi210578402840220926(Top 79%)8197(Top 72%)8197(Top 1006%)
10K6.21 mi3.10 mi21032+258340+628340+6221047(Top 79%)8294(Top 73%)8294(Top 1018%)
15K9.32 mi3.11 mi21019+138296+448296+4420926(Top 79%)8197(Top 72%)8197(Top 1006%)
20K12.43 mi3.11 mi20902+1178219+778219+7720670(Top 78%)8044(Top 70%)8044(Top 987%)
Half13.11 mi0.68 mi20920-188224-58224-521382(Top 80%)8454(Top 74%)8454(Top 1037%)
25K15.53 mi2.42 mi20948-288232-88232-821099(Top 79%)8321(Top 73%)8321(Top 1021%)
30K18.64 mi3.11 mi20930+188238-68238-620910(Top 79%)8293(Top 73%)8293(Top 1018%)
20M20.00 mi1.36 mi20925+58253-158253-1521153(Top 79%)8496(Top 74%)8496(Top 1042%)
21M21.00 mi1.00 mi20932-78269-168269-1621071(Top 79%)8499(Top 74%)8499(Top 1043%)
35K21.75 mi0.75 mi20858+748243+268243+2619061(Top 72%)7431(Top 65%)7431(Top 912%)
23M23.00 mi1.25 mi20919-618292-498292-4921961(Top 82%)9048(Top 79%)9048(Top 1110%)
24M24.00 mi1.00 mi20937-188310-188310-1821245(Top 80%)8692(Top 76%)8692(Top 1067%)
40K24.85 mi0.85 mi20960-238334-248334-2421762(Top 82%)9020(Top 79%)9020(Top 1107%)
25.2M25.20 mi0.35 mi21019-598376-428376-4222876(Top 86%)9589(Top 84%)9589(Top 1177%)
Finish26.22 mi1.02 mi21058-398400-248400-2422062(Top 83%)9146(Top 80%)9146(Top 1122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

20926

Females

8197

F55-59

8197

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21047

Females

8294

F55-59

8294

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

20926

Females

8197

F55-59

8197

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

20670

Females

8044

F55-59

8044

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

21382

Females

8454

F55-59

8454

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

21099

Females

8321

F55-59

8321

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

20910

Females

8293

F55-59

8293

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

21153

Females

8496

F55-59

8496

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

21071

Females

8499

F55-59

8499

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19061

Females

7431

F55-59

7431

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21961

Females

9048

F55-59

9048

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21245

Females

8692

F55-59

8692

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21762

Females

9020

F55-59

9020

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22876

Females

9589

F55-59

9589

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

22062

Females

9146

F55-59

9146

Passing Analysis

Category:
Athletes Passed
1336
Passed By
1337
Net Change
-1
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21057
5K → 10K295270+25#21057#21032
10K → 15K181168+13#21032#21019
15K → 20K218101+117#21019#20902
20K → Half2139-18#20902#20920
Half → 25K92120-28#20920#20948
25K → 30K150132+18#20948#20930
30K → 20M7873+5#20930#20925
20M → 21M5461-7#20925#20932
21M → 35K817+74#20932#20858
35K → 23M58119-61#20858#20919
23M → 24M4159-18#20919#20937
24M → 40K3053-23#20937#20960
40K → 25.2M766-59#20960#21019
25.2M → Finish3069-39#21019#21058
TOTALS13361337-1
📊

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