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BOSTON MARATHON 2023

Susan Bonthron

Bib: 23840•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:10
Rank: #19160
Start → 5K
27:10 | 8:45/mi
10K· 6.21 mi
54:23
Rank: #19423 (-263)
5K → 10K
27:13 | 8:46/mi
15K· 9.32 mi
1:21:28
Rank: #19278 (+145)
10K → 15K
27:05 | 8:43/mi
20K· 12.43 mi
1:49:30
Rank: #19379 (-101)
15K → 20K
28:02 | 9:01/mi
Half· 13.11 mi
1:55:24
Rank: #19338 (+41)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:18:42
Rank: #19775 (-437)
Half → 25K
23:18 | 9:37/mi
30K· 18.64 mi
2:49:33
Rank: #20034 (-259)
25K → 30K
30:51 | 9:56/mi
20M
3:03:26
Rank: #20137 (-103)
30K → 20M
13:53 | 10:13/mi
21M
3:14:25
Rank: #20185 (-48)
20M → 21M
10:59 | 10:59/mi
35K· 21.75 mi
3:21:53
Rank: #20232 (-47)
21M → 35K
7:28 | 9:59/mi
23M
3:34:57
Rank: #20286 (-54)
35K → 23M
13:04 | 10:26/mi
24M
3:45:08
Rank: #20337 (-51)
23M → 24M
10:11 | 10:11/mi
40K· 24.85 mi
3:53:56
Rank: #20339 (-2)
24M → 40K
8:48 | 10:18/mi
25.2M
3:57:43
Rank: #20335 (+4)
40K → 25.2M
3:47 | 10:58/mi
Finish· 26.22 mi
4:07:40
Rank: #20351 (-16)
25.2M → Finish
9:57 | 9:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:24
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:12:16
Pace10:05 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5727:108:4527:10
8:45
-
10K
6.21 mi11:50:1054:238:4527:13
8:46
+0:01
15K
9.32 mi12:17:151:21:288:4427:05
8:43
-0:03
20K
12.43 mi12:45:171:49:308:4928:02
9:01
+0:18
Half
13.11 mi12:51:111:55:248:485:54
8:39
-0:22
25K
15.53 mi13:14:292:18:428:5623:18
9:37
+0:58
30K
18.64 mi13:45:202:49:339:0630:51
9:56
+0:19
20M
20.00 mi13:59:133:03:269:1013:53
10:13
+0:17
21M
21.00 mi14:10:123:14:259:1510:59
10:59
+0:46
35K
21.75 mi14:17:403:21:539:177:28
9:59
-1:00
23M
23.00 mi14:30:443:34:579:2113:04
10:26
+0:27
24M
24.00 mi14:40:553:45:089:2310:11
10:11
-0:15
40K
24.85 mi14:49:433:53:569:258:48
10:18
+0:07
25.2M
25.20 mi14:53:303:57:439:263:47
10:58
+0:40
Finish
26.22 mi15:03:274:07:409:279:57
9:46
-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

8:39 /mi

Average Pace

9:27 /mi

Slowest Pace

10:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:24

47% of race

Time at Steady Pace

1:44:26

42% of race

Time at Slower Pace

27:50

11% of race

Average Pace: 9:27 /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 mi11:22:5727:108:4527:10
8:45
#19160
10K
6.21 mi11:50:1054:238:4527:13
8:46
#19423
15K
9.32 mi12:17:151:21:288:4427:05
8:43
#19278
20K
12.43 mi12:45:171:49:308:4928:02
9:01
#19379
Half
13.11 mi12:51:111:55:248:485:54
8:39
#19338
25K
15.53 mi13:14:292:18:428:5623:18
9:37
#19775
30K
18.64 mi13:45:202:49:339:0630:51
9:56
#20034
20M
20.00 mi13:59:133:03:269:1013:53
10:13
#20137
21M
21.00 mi14:10:123:14:259:1510:59
10:59
#20185
35K
21.75 mi14:17:403:21:539:177:28
9:59
#20232
23M
23.00 mi14:30:443:34:579:2113:04
10:26
#20286
24M
24.00 mi14:40:553:45:089:2310:11
10:11
#20337
40K
24.85 mi14:49:433:53:569:258:48
10:18
#20339
25.2M
25.20 mi14:53:303:57:439:263:47
10:58
#20335
Finish
26.22 mi15:03:274:07:409:279:57
9:46
#20351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi191607301730119088(Top 72%)7156(Top 63%)7156(Top 1358%)
10K6.21 mi3.10 mi19423-2637413-1127413-11219742(Top 74%)7542(Top 66%)7542(Top 1431%)
15K9.32 mi3.11 mi19278+1457304+1097304+10919088(Top 72%)7156(Top 63%)7156(Top 1358%)
20K12.43 mi3.11 mi19379-1017360-567360-5619819(Top 74%)7570(Top 66%)7570(Top 1436%)
Half13.11 mi0.68 mi19338+417327+337327+3318700(Top 70%)6914(Top 61%)6914(Top 1312%)
25K15.53 mi2.42 mi19775-4377594-2677594-26721161(Top 79%)8356(Top 73%)8356(Top 1586%)
30K18.64 mi3.11 mi20034-2597746-1527746-15220818(Top 78%)8239(Top 72%)8239(Top 1563%)
20M20.00 mi1.36 mi20137-1037826-807826-8021066(Top 79%)8444(Top 74%)8444(Top 1602%)
21M21.00 mi1.00 mi20185-487857-317857-3120811(Top 78%)8359(Top 73%)8359(Top 1586%)
35K21.75 mi0.75 mi20232-477893-367893-3621215(Top 80%)8603(Top 75%)8603(Top 1632%)
23M23.00 mi1.25 mi20286-547931-387931-3821167(Top 80%)8610(Top 75%)8610(Top 1634%)
24M24.00 mi1.00 mi20337-517965-347965-3421294(Top 80%)8719(Top 76%)8719(Top 1654%)
40K24.85 mi0.85 mi20339-27980-157980-1520729(Top 78%)8456(Top 74%)8456(Top 1605%)
25.2M25.20 mi0.35 mi20335+47985-57985-520413(Top 77%)8270(Top 72%)8270(Top 1569%)
Finish26.22 mi1.02 mi20351-168000-158000-1521041(Top 79%)8582(Top 75%)8582(Top 1628%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19088

Females

7156

F60-64

7156

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19742

Females

7542

F60-64

7542

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19088

Females

7156

F60-64

7156

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19819

Females

7570

F60-64

7570

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18700

Females

6914

F60-64

6914

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

21161

Females

8356

F60-64

8356

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20818

Females

8239

F60-64

8239

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

21066

Females

8444

F60-64

8444

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20811

Females

8359

F60-64

8359

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21215

Females

8603

F60-64

8603

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

21167

Females

8610

F60-64

8610

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21294

Females

8719

F60-64

8719

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20729

Females

8456

F60-64

8456

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20413

Females

8270

F60-64

8270

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

21041

Females

8582

F60-64

8582

Passing Analysis

Category:
Athletes Passed
1092
Passed By
2283
Net Change
-1191
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19160
5K → 10K212475-263#19160#19423
10K → 15K269124+145#19423#19278
15K → 20K121222-101#19278#19379
20K → Half5211+41#19379#19338
Half → 25K28465-437#19338#19775
25K → 30K92351-259#19775#20034
30K → 20M56159-103#20034#20137
20M → 21M57105-48#20137#20185
21M → 35K2673-47#20185#20232
35K → 23M54108-54#20232#20286
23M → 24M2677-51#20286#20337
24M → 40K4244-2#20337#20339
40K → 25.2M2218+4#20339#20335
25.2M → Finish3551-16#20335#20351
TOTALS10922283-1191
📊

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