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BOSTON MARATHON 2023

Wendy Clark

Bib: 31821•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
8:37/mi
26:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
53:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:20:50
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:48:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:54:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:54/mi
2:16:18
↑ 66↓ 880.2%
30K· 18.64 mi
9:21/mi
2:45:20
↑ 181↓ 1480.2%
20M
9:14/mi
2:57:53
↑ 64↓ 500.2%
21M
10:20/mi
3:08:13
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:15:05
↑ 17↓ 861.7%
23M
9:37/mi
3:27:07
↑ 23↓ 630.6%
24M
9:15/mi
3:36:22
↓ 821.3%
40K· 24.85 mi
9:40/mi
3:44:38
↓ 200.3%
25.2M
10:32/mi
3:48:16
↑ 13↓ 160.2%
Finish· 26.22 mi
9:22/mi
3:57:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:44
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:03:05
Pace9:23 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1126:468:3726:46
8:37
-
10K
6.21 mi12:16:0353:388:3826:52
8:39
+0:02
15K
9.32 mi12:43:151:20:508:4027:12
8:45
+0:06
20K
12.43 mi13:11:071:48:428:4527:52
8:58
+0:13
Half
13.11 mi13:17:091:54:448:456:02
8:51
-0:07
25K
15.53 mi13:38:432:16:188:4621:34
8:54
+0:03
30K
18.64 mi14:07:452:45:208:5229:02
9:21
+0:27
20M
20.00 mi14:20:182:57:538:5412:33
9:14
-0:07
21M
21.00 mi14:30:383:08:138:5810:20
10:20
+1:06
35K
21.75 mi14:37:303:15:058:586:52
9:11
-1:09
23M
23.00 mi14:49:323:27:079:0012:02
9:37
+0:26
24M
24.00 mi14:58:473:36:229:019:15
9:15
-0:22
40K
24.85 mi15:07:033:44:389:028:16
9:40
+0:25
25.2M
25.20 mi15:10:413:48:169:033:38
10:32
+0:52
Finish
26.22 mi15:20:143:57:499:059:33
9:22
-1:10

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

8:37 /mi

Average Pace

9:05 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:26

46% of race

Time at Steady Pace

1:35:07

40% of race

Time at Slower Pace

34:16

14% of race

Average Pace: 9:04 /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 mi11:49:1126:468:3726:46
8:37
#18329
10K
6.21 mi12:16:0353:388:3826:52
8:39
#18702
15K
9.32 mi12:43:151:20:508:4027:12
8:45
#18888
20K
12.43 mi13:11:071:48:428:4527:52
8:58
#19050
Half
13.11 mi13:17:091:54:448:456:02
8:51
#19077
25K
15.53 mi13:38:432:16:188:4621:34
8:54
#18966
30K
18.64 mi14:07:452:45:208:5229:02
9:21
#18946
20M
20.00 mi14:20:182:57:538:5412:33
9:14
#18847
21M
21.00 mi14:30:383:08:138:5810:20
10:20
#18875
35K
21.75 mi14:37:303:15:058:586:52
9:11
#18871
23M
23.00 mi14:49:323:27:079:0012:02
9:37
#18865
24M
24.00 mi14:58:473:36:229:019:15
9:15
#18820
40K
24.85 mi15:07:033:44:389:028:16
9:40
#18844
25.2M
25.20 mi15:10:413:48:169:033:38
10:32
#18856
Finish
26.22 mi15:20:143:57:499:059:33
9:22
#18914
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi183296765676519271(Top 72%)7253(Top 63%)7253(Top 601%)
10K6.21 mi3.10 mi18702-3736949-1846949-18419125(Top 72%)7158(Top 63%)7158(Top 593%)
15K9.32 mi3.11 mi18888-1867061-1127061-11219271(Top 72%)7253(Top 63%)7253(Top 601%)
20K12.43 mi3.11 mi19050-1627148-877148-8719563(Top 73%)7413(Top 65%)7413(Top 614%)
Half13.11 mi0.68 mi19077-277168-207168-2019744(Top 74%)7515(Top 66%)7515(Top 623%)
25K15.53 mi2.42 mi18966+1117100+687100+6818446(Top 69%)6815(Top 60%)6815(Top 565%)
30K18.64 mi3.11 mi18946+207106-67106-618805(Top 71%)7085(Top 62%)7085(Top 587%)
20M20.00 mi1.36 mi18847+997068+387068+3817751(Top 67%)6615(Top 58%)6615(Top 548%)
21M21.00 mi1.00 mi18875-287096-287096-2819124(Top 72%)7410(Top 65%)7410(Top 614%)
35K21.75 mi0.75 mi18871+47100-47100-418676(Top 70%)7206(Top 63%)7206(Top 597%)
23M23.00 mi1.25 mi18865+67112-127112-1218782(Top 71%)7286(Top 64%)7286(Top 604%)
24M24.00 mi1.00 mi18820+457100+127100+1218279(Top 69%)7047(Top 62%)7047(Top 584%)
40K24.85 mi0.85 mi18844-247119-197119-1918936(Top 71%)7459(Top 65%)7459(Top 618%)
25.2M25.20 mi0.35 mi18856-127127-87127-819235(Top 72%)7630(Top 67%)7630(Top 632%)
Finish26.22 mi1.02 mi18914-587161-347161-3419667(Top 74%)7813(Top 68%)7813(Top 647%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19271

Females

7253

F50-54

7253

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19125

Females

7158

F50-54

7158

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19271

Females

7253

F50-54

7253

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19563

Females

7413

F50-54

7413

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19744

Females

7515

F50-54

7515

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18446

Females

6815

F50-54

6815

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18805

Females

7085

F50-54

7085

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17751

Females

6615

F50-54

6615

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19124

Females

7410

F50-54

7410

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18676

Females

7206

F50-54

7206

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

18782

Females

7286

F50-54

7286

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18279

Females

7047

F50-54

7047

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18936

Females

7459

F50-54

7459

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19235

Females

7630

F50-54

7630

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19667

Females

7813

F50-54

7813

Passing Analysis

Category:
Athletes Passed
1251
Passed By
1836
Net Change
-585
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18329
5K → 10K168541-373#18329#18702
10K → 15K110296-186#18702#18888
15K → 20K111273-162#18888#19050
20K → Half1643-27#19050#19077
Half → 25K17261+111#19077#18966
25K → 30K177157+20#18966#18946
30K → 20M13738+99#18946#18847
20M → 21M6795-28#18847#18875
21M → 35K4844+4#18875#18871
35K → 23M7771+6#18871#18865
23M → 24M8338+45#18865#18820
24M → 40K4367-24#18820#18844
40K → 25.2M1830-12#18844#18856
25.2M → Finish2482-58#18856#18914
TOTALS12511836-585
📊

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