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BOSTON MARATHON 2023

Kathleen Crawford

Bib: 12559•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:03
Rank: #11848
Start → 5K
24:03 | 7:44/mi
10K· 6.21 mi
47:14
Rank: #10940 (+908)
5K → 10K
23:11 | 7:28/mi
15K· 9.32 mi
1:10:10
Rank: #10315 (+625)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:33:42
Rank: #10191 (+124)
15K → 20K
23:32 | 7:34/mi
Half· 13.11 mi
1:38:53
Rank: #10227 (-36)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:58:08
Rank: #10522 (-295)
Half → 25K
19:15 | 7:56/mi
30K· 18.64 mi
2:24:10
Rank: #11033 (-511)
25K → 30K
26:02 | 8:23/mi
20M
2:35:49
Rank: #11276 (-243)
30K → 20M
11:39 | 8:34/mi
21M
2:44:23
Rank: #11238 (+38)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:50:15
Rank: #11212 (+26)
21M → 35K
5:52 | 7:51/mi
23M
3:00:23
Rank: #11146 (+66)
35K → 23M
10:08 | 8:06/mi
24M
3:08:12
Rank: #11090 (+56)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:14:59
Rank: #11005 (+85)
24M → 40K
6:47 | 7:56/mi
25.2M
3:17:50
Rank: #10935 (+70)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:25:19
Rank: #10769 (+166)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:53
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:46:26
Pace8:07 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2524:037:4424:03
7:44
-
10K
6.21 mi11:15:3647:147:3623:11
7:28
-0:16
15K
9.32 mi11:38:321:10:107:3222:56
7:23
-0:05
20K
12.43 mi12:02:041:33:427:3223:32
7:34
+0:11
Half
13.11 mi12:07:151:38:537:335:11
7:36
+0:02
25K
15.53 mi12:26:301:58:087:3619:15
7:56
+0:20
30K
18.64 mi12:52:322:24:107:4426:02
8:23
+0:27
20M
20.00 mi13:04:112:35:497:4711:39
8:34
+0:11
21M
21.00 mi13:12:452:44:237:508:34
8:34
0:00
35K
21.75 mi13:18:372:50:157:505:52
7:51
-0:43
23M
23.00 mi13:28:453:00:237:5110:08
8:06
+0:15
24M
24.00 mi13:36:343:08:127:517:49
7:49
-0:17
40K
24.85 mi13:43:213:14:597:516:47
7:56
+0:07
25.2M
25.20 mi13:46:123:17:507:512:51
8:16
+0:20
Finish
26.22 mi13:53:413:25:197:507:29
7:21
-0:55

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

7:21 /mi

Average Pace

7:50 /mi

Slowest Pace

8:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:05

71% of race

Time at Steady Pace

59:14

29% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi10:52:2524:037:4424:03
7:44
#11848
10K
6.21 mi11:15:3647:147:3623:11
7:28
#10940
15K
9.32 mi11:38:321:10:107:3222:56
7:23
#10315
20K
12.43 mi12:02:041:33:427:3223:32
7:34
#10191
Half
13.11 mi12:07:151:38:537:335:11
7:36
#10227
25K
15.53 mi12:26:301:58:087:3619:15
7:56
#10522
30K
18.64 mi12:52:322:24:107:4426:02
8:23
#11033
20M
20.00 mi13:04:112:35:497:4711:39
8:34
#11276
21M
21.00 mi13:12:452:44:237:508:34
8:34
#11238
35K
21.75 mi13:18:372:50:157:505:52
7:51
#11212
23M
23.00 mi13:28:453:00:237:5110:08
8:06
#11146
24M
24.00 mi13:36:343:08:127:517:49
7:49
#11090
40K
24.85 mi13:43:213:14:597:516:47
7:56
#11005
25.2M
25.20 mi13:46:123:17:507:512:51
8:16
#10935
Finish
26.22 mi13:53:413:25:197:507:29
7:21
#10769
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11848277227729200(Top 35%)1522(Top 13%)1522(Top 31%)
10K6.21 mi3.10 mi10940+9082297+4752297+47510180(Top 38%)1907(Top 17%)1907(Top 39%)
15K9.32 mi3.11 mi10315+6251965+3321965+3329200(Top 35%)1522(Top 13%)1522(Top 31%)
20K12.43 mi3.11 mi10191+1241921+441921+449925(Top 37%)1884(Top 16%)1884(Top 39%)
Half13.11 mi0.68 mi10227-361944-231944-2311057(Top 42%)2399(Top 21%)2399(Top 49%)
25K15.53 mi2.42 mi10522-2952107-1632107-16312218(Top 46%)3196(Top 28%)3196(Top 65%)
30K18.64 mi3.11 mi11033-5112420-3132420-31313557(Top 51%)4060(Top 36%)4060(Top 83%)
20M20.00 mi1.36 mi11276-2432587-1672587-16714048(Top 53%)4446(Top 39%)4446(Top 91%)
21M21.00 mi1.00 mi11238+382589-22589-210924(Top 41%)2838(Top 25%)2838(Top 58%)
35K21.75 mi0.75 mi11212+262582+72582+710986(Top 41%)2863(Top 25%)2863(Top 59%)
23M23.00 mi1.25 mi11146+662573+92573+910420(Top 39%)2714(Top 24%)2714(Top 56%)
24M24.00 mi1.00 mi11090+562569+42569+49949(Top 37%)2567(Top 22%)2567(Top 53%)
40K24.85 mi0.85 mi11005+852556+132556+139617(Top 36%)2462(Top 22%)2462(Top 50%)
25.2M25.20 mi0.35 mi10935+702536+202536+208185(Top 31%)1912(Top 17%)1912(Top 39%)
Finish26.22 mi1.02 mi10769+1662482+542482+547438(Top 28%)1606(Top 14%)1606(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9200

Females

1522

F18-39

1522

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10180

Females

1907

F18-39

1907

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9200

Females

1522

F18-39

1522

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9925

Females

1884

F18-39

1884

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11057

Females

2399

F18-39

2399

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12218

Females

3196

F18-39

3196

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13557

Females

4060

F18-39

4060

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14048

Females

4446

F18-39

4446

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10924

Females

2838

F18-39

2838

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10986

Females

2863

F18-39

2863

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10420

Females

2714

F18-39

2714

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9949

Females

2567

F18-39

2567

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9617

Females

2462

F18-39

2462

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8185

Females

1912

F18-39

1912

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7438

Females

1606

F18-39

1606

Passing Analysis

Category:
Athletes Passed
2757*
Passed By
1678
Net Change
+1079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11848
5K → 10K97062+908#11848#10940
10K → 15K65025+625#10940#10315
15K → 20K219*95+124#10315#10191
20K → Half1753-36#10191#10227
Half → 25K63358-295#10227#10522
25K → 30K63574-511#10522#11033
30K → 20M39282-243#11033#11276
20M → 21M10264+38#11276#11238
21M → 35K5630+26#11238#11212
35K → 23M11650+66#11212#11146
23M → 24M10246+56#11146#11090
24M → 40K10722+85#11090#11005
40K → 25.2M799+70#11005#10935
25.2M → Finish1748+166#10935#10769
TOTALS2757*1678+1079

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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