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BOSTON MARATHON 2023

Kay Sanborn

Bib: 23301•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 (F60-64)
#0 / 527
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:36
Rank: #18005
Start → 5K
26:36 | 8:34/mi
10K· 6.21 mi
53:30
Rank: #18585 (-580)
5K → 10K
26:54 | 8:39/mi
15K· 9.32 mi
1:20:39
Rank: #18772 (-187)
10K → 15K
27:09 | 8:44/mi
20K· 12.43 mi
1:48:21
Rank: #18897 (-125)
15K → 20K
27:42 | 8:55/mi
Half· 13.11 mi
1:54:24
Rank: #18955 (-58)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:16:20
Rank: #18982 (-27)
Half → 25K
21:56 | 9:03/mi
30K· 18.64 mi
2:45:55
Rank: #19111 (-129)
25K → 30K
29:35 | 9:31/mi
20M
2:59:25
Rank: #19226 (-115)
30K → 20M
13:30 | 9:56/mi
21M
3:10:40
Rank: #19415 (-189)
20M → 21M
11:15 | 11:15/mi
35K· 21.75 mi
3:18:06
Rank: #19510 (-95)
21M → 35K
7:26 | 9:56/mi
23M
4:05:05
Rank: #23640 (-4130)
35K → 23M
46:59 | 37:31/mi
24M
4:16:31
Rank: #23652 (-12)
23M → 24M
11:26 | 11:26/mi
40K· 24.85 mi
4:27:06
Rank: #23709 (-57)
24M → 40K
10:35 | 12:23/mi
25.2M
4:31:50
Rank: #23741 (-32)
40K → 25.2M
4:44 | 13:44/mi
Finish· 26.22 mi
4:43:35
Rank: #23791 (-50)
25.2M → Finish
11:45 | 11:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:24
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:49:11
Pace12:54 /mi
📊Positive Split: 47.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5126:368:3426:36
8:34
-
10K
6.21 mi11:48:4553:308:3726:54
8:39
+0:05
15K
9.32 mi12:15:541:20:398:3927:09
8:44
+0:05
20K
12.43 mi12:43:361:48:218:4327:42
8:55
+0:11
Half
13.11 mi12:49:391:54:248:446:03
8:52
-0:03
25K
15.53 mi13:11:352:16:208:4721:56
9:03
+0:11
30K
18.64 mi13:41:102:45:558:5429:35
9:31
+0:28
20M
20.00 mi13:54:402:59:258:5813:30
9:56
+0:25
21M
21.00 mi14:05:553:10:409:0511:15
11:15
+1:19
35K
21.75 mi14:13:213:18:069:077:26
9:56
-1:19
23M
23.00 mi15:00:204:05:0510:3946:59
37:31
+27:35
24M
24.00 mi15:11:464:16:3110:4111:26
11:26
-26:05
40K
24.85 mi15:22:214:27:0610:4510:35
12:23
+0:57
25.2M
25.20 mi15:27:054:31:5010:474:44
13:44
+1:21
Finish
26.22 mi15:38:504:43:3510:4911:45
11:32
-2:12

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

8:34 /mi

Average Pace

10:49 /mi

Slowest Pace

37:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:51:52

82% of race

Time at Slower Pace

51:43

18% of race

Average Pace: 10:49 /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 mi11:21:5126:368:3426:36
8:34
#18005
10K
6.21 mi11:48:4553:308:3726:54
8:39
#18585
15K
9.32 mi12:15:541:20:398:3927:09
8:44
#18772
20K
12.43 mi12:43:361:48:218:4327:42
8:55
#18897
Half
13.11 mi12:49:391:54:248:446:03
8:52
#18955
25K
15.53 mi13:11:352:16:208:4721:56
9:03
#18982
30K
18.64 mi13:41:102:45:558:5429:35
9:31
#19111
20M
20.00 mi13:54:402:59:258:5813:30
9:56
#19226
21M
21.00 mi14:05:553:10:409:0511:15
11:15
#19415
35K
21.75 mi14:13:213:18:069:077:26
9:56
#19510
23M
23.00 mi15:00:204:05:0510:3946:59
37:31
#23640
24M
24.00 mi15:11:464:16:3110:4111:26
11:26
#23652
40K
24.85 mi15:22:214:27:0610:4510:35
12:23
#23709
25.2M
25.20 mi15:27:054:31:5010:474:44
13:44
#23741
Finish
26.22 mi15:38:504:43:3510:4911:45
11:32
#23791
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi180056566656619192(Top 72%)7215(Top 63%)7215(Top 1369%)
10K6.21 mi3.10 mi18585-5806876-3106876-31019199(Top 72%)7204(Top 63%)7204(Top 1367%)
15K9.32 mi3.11 mi18772-1876989-1136989-11319192(Top 72%)7215(Top 63%)7215(Top 1369%)
20K12.43 mi3.11 mi18897-1257062-737062-7319304(Top 73%)7275(Top 64%)7275(Top 1380%)
Half13.11 mi0.68 mi18955-587096-347096-3419898(Top 75%)7623(Top 67%)7623(Top 1446%)
25K15.53 mi2.42 mi18982-277113-177113-1719202(Top 72%)7248(Top 63%)7248(Top 1375%)
30K18.64 mi3.11 mi19111-1297203-907203-9019520(Top 73%)7487(Top 66%)7487(Top 1421%)
20M20.00 mi1.36 mi19226-1157283-807283-8020316(Top 76%)8040(Top 70%)8040(Top 1526%)
21M21.00 mi1.00 mi19415-1897410-1277410-12721392(Top 80%)8683(Top 76%)8683(Top 1648%)
35K21.75 mi0.75 mi19510-957469-597469-5921137(Top 79%)8566(Top 75%)8566(Top 1625%)
23M23.00 mi1.25 mi23640-41309750-22819750-228126620(Top 100%)11421(Top 100%)11421(Top 2167%)
24M24.00 mi1.00 mi23652-129769-199769-1923780(Top 89%)10045(Top 88%)10045(Top 1906%)
40K24.85 mi0.85 mi23709-579809-409809-4024318(Top 91%)10346(Top 91%)10346(Top 1963%)
25.2M25.20 mi0.35 mi23741-329829-209829-2024766(Top 93%)10571(Top 93%)10571(Top 2006%)
Finish26.22 mi1.02 mi23791-509862-339862-3324713(Top 93%)10514(Top 92%)10514(Top 1995%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19192

Females

7215

F60-64

7215

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19199

Females

7204

F60-64

7204

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19192

Females

7215

F60-64

7215

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19304

Females

7275

F60-64

7275

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19898

Females

7623

F60-64

7623

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19202

Females

7248

F60-64

7248

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19520

Females

7487

F60-64

7487

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20316

Females

8040

F60-64

8040

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21392

Females

8683

F60-64

8683

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21137

Females

8566

F60-64

8566

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

26620

Females

11421

F60-64

11421

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

23780

Females

10045

F60-64

10045

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24318

Females

10346

F60-64

10346

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24766

Females

10571

F60-64

10571

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24713

Females

10514

F60-64

10514

Passing Analysis

Category:
Athletes Passed
772
Passed By
6558
Net Change
-5786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18005
5K → 10K127707-580#18005#18585
10K → 15K115302-187#18585#18772
15K → 20K117242-125#18772#18897
20K → Half1169-58#18897#18955
Half → 25K119146-27#18955#18982
25K → 30K121250-129#18982#19111
30K → 20M49164-115#19111#19226
20M → 21M38227-189#19226#19415
21M → 35K18113-95#19415#19510
35K → 23M04130-4130#19510#23640
23M → 24M2739-12#23640#23652
24M → 40K1370-57#23652#23709
40K → 25.2M638-32#23709#23741
25.2M → Finish1161-50#23741#23791
TOTALS7726558-5786
📊

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