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BOSTON MARATHON 2023

Nancy Winchester

Bib: 15895•F

NC

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
Top 28%
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
8:03/mi
25:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
50:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:17:22
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:45:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:50:59
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:12:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:41:50
↑ 181↓ 1480.2%
20M
9:27/mi
2:54:40
↑ 64↓ 500.2%
21M
10:34/mi
3:05:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:11:56
↑ 17↓ 861.7%
23M
9:22/mi
3:23:40
↑ 23↓ 630.6%
24M
8:42/mi
3:32:22
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:40:08
↓ 200.3%
25.2M
9:52/mi
3:43:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:40/mi
3:52:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:59
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:01:23
Pace9:16 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4725:008:0325:00
8:03
-
10K
6.21 mi11:21:2550:388:0925:38
8:15
+0:12
15K
9.32 mi11:48:091:17:228:1826:44
8:36
+0:21
20K
12.43 mi12:15:491:45:028:2727:40
8:54
+0:18
Half
13.11 mi12:21:461:50:598:285:57
8:43
-0:11
25K
15.53 mi12:43:382:12:518:3321:52
9:01
+0:18
30K
18.64 mi13:12:372:41:508:4128:59
9:20
+0:19
20M
20.00 mi13:25:272:54:408:4412:50
9:27
+0:07
21M
21.00 mi13:36:013:05:148:4910:34
10:34
+1:07
35K
21.75 mi13:42:433:11:568:506:42
8:57
-1:37
23M
23.00 mi13:54:273:23:408:5111:44
9:22
+0:25
24M
24.00 mi14:03:093:32:228:518:42
8:42
-0:40
40K
24.85 mi14:10:553:40:088:517:46
9:05
+0:23
25.2M
25.20 mi14:14:193:43:328:523:24
9:52
+0:47
Finish
26.22 mi14:23:093:52:228:528:50
8:40
-1:12

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

8:03 /mi

Average Pace

8:52 /mi

Slowest Pace

10:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:22

33% of race

Time at Steady Pace

1:27:29

38% of race

Time at Slower Pace

1:07:31

29% of race

Average Pace: 8:52 /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 mi10:55:4725:008:0325:00
8:03
#14358
10K
6.21 mi11:21:2550:388:0925:38
8:15
#15456
15K
9.32 mi11:48:091:17:228:1826:44
8:36
#16525
20K
12.43 mi12:15:491:45:028:2727:40
8:54
#17265
Half
13.11 mi12:21:461:50:598:285:57
8:43
#17361
25K
15.53 mi12:43:382:12:518:3321:52
9:01
#17640
30K
18.64 mi13:12:372:41:508:4128:59
9:20
#17863
20M
20.00 mi13:25:272:54:408:4412:50
9:27
#17924
21M
21.00 mi13:36:013:05:148:4910:34
10:34
#18085
35K
21.75 mi13:42:433:11:568:506:42
8:57
#18083
23M
23.00 mi13:54:273:23:408:5111:44
9:22
#18077
24M
24.00 mi14:03:093:32:228:518:42
8:42
#17975
40K
24.85 mi14:10:553:40:088:517:46
9:05
#17930
25.2M
25.20 mi14:14:193:43:328:523:24
9:52
#17909
Finish
26.22 mi14:23:093:52:228:528:50
8:40
#17842
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi143584245424518487(Top 69%)6790(Top 59%)6790(Top 833%)
10K6.21 mi3.10 mi15456-10984942-6974942-69716605(Top 62%)5644(Top 49%)5644(Top 693%)
15K9.32 mi3.11 mi16525-10695615-6735615-67318487(Top 69%)6790(Top 59%)6790(Top 833%)
20K12.43 mi3.11 mi17265-7406091-4766091-47619237(Top 72%)7232(Top 63%)7232(Top 887%)
Half13.11 mi0.68 mi17361-966139-486139-4819076(Top 72%)7118(Top 62%)7118(Top 873%)
25K15.53 mi2.42 mi17640-2796321-1826321-18219055(Top 72%)7159(Top 63%)7159(Top 878%)
30K18.64 mi3.11 mi17863-2236480-1596480-15918749(Top 70%)7055(Top 62%)7055(Top 866%)
20M20.00 mi1.36 mi17924-616542-626542-6218642(Top 70%)7100(Top 62%)7100(Top 871%)
21M21.00 mi1.00 mi18085-1616647-1056647-10519801(Top 74%)7815(Top 68%)7815(Top 959%)
35K21.75 mi0.75 mi18083+26646+16646+117750(Top 67%)6698(Top 59%)6698(Top 822%)
23M23.00 mi1.25 mi18077+66658-126658-1217826(Top 67%)6765(Top 59%)6765(Top 830%)
24M24.00 mi1.00 mi17975+1026611+476611+4715696(Top 59%)5645(Top 49%)5645(Top 693%)
40K24.85 mi0.85 mi17930+456594+176594+1716587(Top 62%)6177(Top 54%)6177(Top 758%)
25.2M25.20 mi0.35 mi17909+216582+126582+1216864(Top 63%)6355(Top 56%)6355(Top 780%)
Finish26.22 mi1.02 mi17842+676557+256557+2516359(Top 61%)6028(Top 53%)6028(Top 740%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18487

Females

6790

F55-59

6790

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16605

Females

5644

F55-59

5644

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18487

Females

6790

F55-59

6790

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19237

Females

7232

F55-59

7232

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19076

Females

7118

F55-59

7118

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19055

Females

7159

F55-59

7159

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18749

Females

7055

F55-59

7055

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18642

Females

7100

F55-59

7100

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19801

Females

7815

F55-59

7815

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17750

Females

6698

F55-59

6698

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17826

Females

6765

F55-59

6765

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15696

Females

5645

F55-59

5645

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16587

Females

6177

F55-59

6177

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16864

Females

6355

F55-59

6355

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16359

Females

6028

F55-59

6028

Passing Analysis

Category:
Athletes Passed
857
Passed By
4341
Net Change
-3484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14358
5K → 10K461144-1098#14358#15456
10K → 15K221091-1069#15456#16525
15K → 20K42782-740#16525#17265
20K → Half8104-96#17265#17361
Half → 25K53332-279#17361#17640
25K → 30K120343-223#17640#17863
30K → 20M74135-61#17863#17924
20M → 21M51212-161#17924#18085
21M → 35K4947+2#18085#18083
35K → 23M7266+6#18083#18077
23M → 24M11513+102#18077#17975
24M → 40K7227+45#17975#17930
40K → 25.2M3817+21#17930#17909
25.2M → Finish9528+67#17909#17842
TOTALS8574341-3484
📊

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