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BOSTON MARATHON 2023

Florence Clarke

NY

Bib: 23411 F

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 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:54/mi
24:32
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:26/mi
50:45
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:40/mi
1:17:40
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:43/mi
1:44:46
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:18/mi
1:51:07
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:38/mi
2:12:02
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:21/mi
2:41:05
↑ 181↓ 1480.2%
138 ft elev
20M
9:59/mi
2:54:39
↑ 64↓ 500.2%
148 ft elev
21M
10:38/mi
3:05:17
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:12/mi
3:12:10
↑ 17↓ 861.7%
156 ft elev
23M
9:11/mi
3:23:40
↑ 23↓ 630.6%
116 ft elev
24M
9:29/mi
3:33:09
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:53/mi
3:41:36
↓ 200.3%
20 ft elev
25.2M
10:47/mi
3:45:19
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:09/mi
3:54:38
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:07
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:03:31
Pace9:25 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:4324:327:5424:32
7:54
-
10K
6.21 mi12:05:5650:458:1026:13
8:26
+0:32
15K
9.32 mi12:32:511:17:408:2026:55
8:40
+0:14
20K
12.43 mi12:59:571:44:468:2627:06
8:43
+0:03
Half
13.11 mi13:06:181:51:078:296:21
9:18
+0:35
25K
15.53 mi13:27:132:12:028:3020:55
8:38
-0:40
30K
18.64 mi13:56:162:41:058:3829:03
9:21
+0:43
20M
20.00 mi14:09:502:54:398:4413:34
9:59
+0:38
21M
21.00 mi14:20:283:05:178:4910:38
10:38
+0:39
35K
21.75 mi14:27:213:12:108:506:53
9:12
-1:26
23M
23.00 mi14:38:513:23:408:5111:30
9:11
-0:01
24M
24.00 mi14:48:203:33:098:539:29
9:29
+0:18
40K
24.85 mi14:56:473:41:368:558:27
9:53
+0:24
25.2M
25.20 mi15:00:303:45:198:563:43
10:47
+0:54
Finish
26.22 mi15:09:493:54:388:579:19
9:09
-1:38

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

7:54 /mi

Average Pace

8:57 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:41

54% of race

Time at Steady Pace

1:12:35

31% of race

Time at Slower Pace

36:22

15% of race

Average Pace: 8:57 /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 mi11:39:4324:327:5424:32
7:54
#13229
10K
6.21 mi12:05:5650:458:1026:13
8:26
#15613
15K
9.32 mi12:32:511:17:408:2026:55
8:40
#16748
20K
12.43 mi12:59:571:44:468:2627:06
8:43
#17150
Half
13.11 mi13:06:181:51:078:296:21
9:18
#17408
25K
15.53 mi13:27:132:12:028:3020:55
8:38
#17314
30K
18.64 mi13:56:162:41:058:3829:03
9:21
#17616
20M
20.00 mi14:09:502:54:398:4413:34
9:59
#17919
21M
21.00 mi14:20:283:05:178:4910:38
10:38
#18106
35K
21.75 mi14:27:213:12:108:506:53
9:12
#18146
23M
23.00 mi14:38:513:23:408:5111:30
9:11
#18079
24M
24.00 mi14:48:203:33:098:539:29
9:29
#18155
40K
24.85 mi14:56:473:41:368:558:27
9:53
#18238
25.2M
25.20 mi15:00:303:45:198:563:43
10:47
#18273
Finish
26.22 mi15:09:493:54:388:579:19
9:09
#18306
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi13229357335731880369816981
10K6.21 mi3.10 mi15613-23845042-14695042-14691785964086408
15K9.32 mi3.11 mi16748-11355764-7225764-7221880369816981
20K12.43 mi3.11 mi17150-4026018-2546018-2541826766526652
Half13.11 mi0.68 mi17408-2586166-1486166-1482154185278527
25K15.53 mi2.42 mi17314+946125+416125+411698560036003
30K18.64 mi3.11 mi17616-3026330-2056330-2051883270977097
20M20.00 mi1.36 mi17919-3036538-2086538-2082044180978097
21M21.00 mi1.00 mi18106-1876658-1206658-1201997379127912
35K21.75 mi0.75 mi18146-406691-336691-331875272427242
23M23.00 mi1.25 mi18079+676660+316660+311700362956295
24M24.00 mi1.00 mi18155-766718-586718-581915475307530
40K24.85 mi0.85 mi18238-836779-616779-611965178607860
25.2M25.20 mi0.35 mi18273-356803-246803-241992180108010
Finish26.22 mi1.02 mi18306-336825-226825-221866872617261

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18803

Females

6981

F55-59

6981

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17859

Females

6408

F55-59

6408

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18803

Females

6981

F55-59

6981

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18267

Females

6652

F55-59

6652

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21541

Females

8527

F55-59

8527

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16985

Females

6003

F55-59

6003

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18832

Females

7097

F55-59

7097

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20441

Females

8097

F55-59

8097

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19973

Females

7912

F55-59

7912

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18752

Females

7242

F55-59

7242

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17003

Females

6295

F55-59

6295

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19154

Females

7530

F55-59

7530

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19651

Females

7860

F55-59

7860

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19921

Females

8010

F55-59

8010

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18668

Females

7261

F55-59

7261

Passing Analysis

Category:
Athletes Passed
686
Passed By
5763
Net Change
-5077
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13229
5K → 10K72391-2384#13229#15613
10K → 15K191154-1135#15613#16748
15K → 20K76478-402#16748#17150
20K → Half1259-258#17150#17408
Half → 25K16470+94#17408#17314
25K → 30K95397-302#17314#17616
30K → 20M28331-303#17616#17919
20M → 21M47234-187#17919#18106
21M → 35K3777-40#18106#18146
35K → 23M10336+67#18146#18079
23M → 24M35111-76#18079#18155
24M → 40K27110-83#18155#18238
40K → 25.2M1449-35#18238#18273
25.2M → Finish3366-33#18273#18306
TOTALS6865763-5077

Passing Charts

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