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BOSTON MARATHON 2023

Heidi Witter

Bib: 23794•F

CA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:58/mi
27:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
54:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:22:30
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:50:49
↑ 106↓ 860.1%
Half· 13.11 mi
9:29/mi
1:57:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:20/mi
2:19:55
↑ 66↓ 880.2%
30K· 18.64 mi
10:14/mi
2:51:44
↑ 181↓ 1480.2%
20M
10:31/mi
3:06:02
↑ 64↓ 500.2%
21M
11:09/mi
3:17:11
↑ 106↓ 241.6%
35K· 21.75 mi
10:11/mi
3:24:48
↑ 17↓ 861.7%
23M
10:30/mi
3:37:57
↑ 23↓ 630.6%
24M
10:04/mi
3:48:01
↓ 821.3%
40K· 24.85 mi
10:58/mi
3:57:24
↓ 200.3%
25.2M
12:08/mi
4:01:35
↑ 13↓ 160.2%
Finish· 26.22 mi
10:36/mi
4:12:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:15:06
Pace10:18 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2227:538:5827:53
8:58
-
10K
6.21 mi11:50:2654:578:5127:04
8:43
-0:15
15K
9.32 mi12:17:591:22:308:5127:33
8:52
+0:09
20K
12.43 mi12:46:181:50:498:5528:19
9:07
+0:15
Half
13.11 mi12:52:461:57:178:576:28
9:29
+0:22
25K
15.53 mi13:15:242:19:559:0022:38
9:20
-0:09
30K
18.64 mi13:47:132:51:449:1331:49
10:14
+0:54
20M
20.00 mi14:01:313:06:029:1814:18
10:31
+0:17
21M
21.00 mi14:12:403:17:119:2311:09
11:09
+0:38
35K
21.75 mi14:20:173:24:489:257:37
10:11
-0:58
23M
23.00 mi14:33:263:37:579:2913:09
10:30
+0:19
24M
24.00 mi14:43:303:48:019:3010:04
10:04
-0:26
40K
24.85 mi14:52:533:57:249:339:23
10:58
+0:54
25.2M
25.20 mi14:57:044:01:359:354:11
12:08
+1:10
Finish
26.22 mi15:07:524:12:239:3810:48
10:36
-1:32

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

8:43 /mi

Average Pace

9:38 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:55

55% of race

Time at Steady Pace

1:27:45

35% of race

Time at Slower Pace

24:43

10% of race

Average Pace: 9:38 /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 mi11:23:2227:538:5827:53
8:58
#20342
10K
6.21 mi11:50:2654:578:5127:04
8:43
#19910
15K
9.32 mi12:17:591:22:308:5127:33
8:52
#19879
20K
12.43 mi12:46:181:50:498:5528:19
9:07
#19947
Half
13.11 mi12:52:461:57:178:576:28
9:29
#20109
25K
15.53 mi13:15:242:19:559:0022:38
9:20
#20148
30K
18.64 mi13:47:132:51:449:1331:49
10:14
#20502
20M
20.00 mi14:01:313:06:029:1814:18
10:31
#20620
21M
21.00 mi14:12:403:17:119:2311:09
11:09
#20646
35K
21.75 mi14:20:173:24:489:257:37
10:11
#20685
23M
23.00 mi14:33:263:37:579:2913:09
10:30
#20728
24M
24.00 mi14:43:303:48:019:3010:04
10:04
#20737
40K
24.85 mi14:52:533:57:249:339:23
10:58
#20800
25.2M
25.20 mi14:57:044:01:359:354:11
12:08
#20831
Finish
26.22 mi15:07:524:12:239:3810:48
10:36
#20930
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi203428021802119900(Top 75%)7635(Top 67%)7635(Top 937%)
10K6.21 mi3.10 mi19910+4327717+3047717+30419498(Top 73%)7387(Top 65%)7387(Top 906%)
15K9.32 mi3.11 mi19879+317669+487669+4819900(Top 75%)7635(Top 67%)7635(Top 937%)
20K12.43 mi3.11 mi19947-687697-287697-2820209(Top 76%)7789(Top 68%)7789(Top 956%)
Half13.11 mi0.68 mi20109-1627778-817778-8122062(Top 83%)8811(Top 77%)8811(Top 1081%)
25K15.53 mi2.42 mi20148-397790-127790-1220317(Top 76%)7878(Top 69%)7878(Top 967%)
30K18.64 mi3.11 mi20502-3548007-2178007-21721635(Top 81%)8703(Top 76%)8703(Top 1068%)
20M20.00 mi1.36 mi20620-1188088-818088-8121792(Top 82%)8864(Top 78%)8864(Top 1088%)
21M21.00 mi1.00 mi20646-268106-188106-1821161(Top 79%)8546(Top 75%)8546(Top 1049%)
35K21.75 mi0.75 mi20685-398136-308136-3021745(Top 82%)8899(Top 78%)8899(Top 1092%)
23M23.00 mi1.25 mi20728-438182-468182-4621328(Top 80%)8698(Top 76%)8698(Top 1067%)
24M24.00 mi1.00 mi20737-98199-178199-1720982(Top 79%)8533(Top 75%)8533(Top 1047%)
40K24.85 mi0.85 mi20800-638238-398238-3922298(Top 84%)9294(Top 81%)9294(Top 1140%)
25.2M25.20 mi0.35 mi20831-318264-268264-2622736(Top 85%)9513(Top 83%)9513(Top 1167%)
Finish26.22 mi1.02 mi20930-998332-688332-6823210(Top 87%)9753(Top 85%)9753(Top 1197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19900

Females

7635

F55-59

7635

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19498

Females

7387

F55-59

7387

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19900

Females

7635

F55-59

7635

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20209

Females

7789

F55-59

7789

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22062

Females

8811

F55-59

8811

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20317

Females

7878

F55-59

7878

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21635

Females

8703

F55-59

8703

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21792

Females

8864

F55-59

8864

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

21161

Females

8546

F55-59

8546

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21745

Females

8899

F55-59

8899

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21328

Females

8698

F55-59

8698

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20982

Females

8533

F55-59

8533

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22298

Females

9294

F55-59

9294

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22736

Females

9513

F55-59

9513

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23210

Females

9753

F55-59

9753

Passing Analysis

Category:
Athletes Passed
1415
Passed By
2003
Net Change
-588
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20342
5K → 10K594162+432#20342#19910
10K → 15K199168+31#19910#19879
15K → 20K155223-68#19879#19947
20K → Half7169-162#19947#20109
Half → 25K118157-39#20109#20148
25K → 30K62416-354#20148#20502
30K → 20M37155-118#20502#20620
20M → 21M6995-26#20620#20646
21M → 35K3170-39#20646#20685
35K → 23M5598-43#20685#20728
23M → 24M3948-9#20728#20737
24M → 40K1982-63#20737#20800
40K → 25.2M738-31#20800#20831
25.2M → Finish23122-99#20831#20930
TOTALS14152003-588
📊

Passing Visuals

Category:
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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