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BOSTON MARATHON 2023

Cathryn Macgregor

Bib: 26580•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:56
Rank: #24171
Start → 5K
31:56 | 10:17/mi
10K· 6.21 mi
1:02:39
Rank: #23809 (+362)
5K → 10K
30:43 | 9:53/mi
15K· 9.32 mi
1:33:10
Rank: #23593 (+216)
10K → 15K
30:31 | 9:49/mi
20K· 12.43 mi
2:04:27
Rank: #23438 (+155)
15K → 20K
31:17 | 10:04/mi
Half· 13.11 mi
2:11:14
Rank: #23432 (+6)
20K → Half
6:47 | 9:57/mi
25K· 15.53 mi
2:36:42
Rank: #23397 (+35)
Half → 25K
25:28 | 10:30/mi
30K· 18.64 mi
3:12:56
Rank: #23525 (-128)
25K → 30K
36:14 | 11:40/mi
20M
3:30:55
Rank: #23751 (-226)
30K → 20M
17:59 | 13:14/mi
21M
3:45:14
Rank: #23907 (-156)
20M → 21M
14:19 | 14:19/mi
35K· 21.75 mi
3:55:17
Rank: #24040 (-133)
21M → 35K
10:03 | 13:26/mi
23M
4:11:36
Rank: #24133 (-93)
35K → 23M
16:19 | 13:02/mi
24M
4:26:06
Rank: #24319 (-186)
23M → 24M
14:30 | 14:30/mi
40K· 24.85 mi
4:38:29
Rank: #24458 (-139)
24M → 40K
12:23 | 14:29/mi
25.2M
4:43:06
Rank: #24464 (-6)
40K → 25.2M
4:37 | 13:23/mi
Finish· 26.22 mi
4:54:27
Rank: #24465 (-1)
25.2M → Finish
11:21 | 11:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:14
Pace10:01 /mi
2nd Half
Distance13.11 mi
Time2:43:13
Pace12:27 /mi
📊Positive Split: 24.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4831:5610:1731:56
10:17
-
10K
6.21 mi12:19:311:02:3910:0530:43
9:53
-0:24
15K
9.32 mi12:50:021:33:1010:0030:31
9:49
-0:04
20K
12.43 mi13:21:192:04:2710:0131:17
10:04
+0:15
Half
13.11 mi13:28:062:11:1410:016:47
9:57
-0:07
25K
15.53 mi13:53:342:36:4210:0525:28
10:30
+0:33
30K
18.64 mi14:29:483:12:5610:2136:14
11:40
+1:10
20M
20.00 mi14:47:473:30:5510:3317:59
13:14
+1:34
21M
21.00 mi15:02:063:45:1410:4414:19
14:19
+1:05
35K
21.75 mi15:12:093:55:1710:4910:03
13:26
-0:53
23M
23.00 mi15:28:284:11:3610:5616:19
13:02
-0:24
24M
24.00 mi15:42:584:26:0611:0514:30
14:30
+1:28
40K
24.85 mi15:55:214:38:2911:1212:23
14:29
-0:01
25.2M
25.20 mi15:59:584:43:0611:144:37
13:23
-1:06
Finish
26.22 mi16:11:194:54:2711:1411:21
11:08
-2:15

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

9:49 /mi

Average Pace

11:14 /mi

Slowest Pace

14:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:42

53% of race

Time at Steady Pace

47:35

16% of race

Time at Slower Pace

1:30:10

31% of race

Average Pace: 11:14 /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 mi11:48:4831:5610:1731:56
10:17
#24171
10K
6.21 mi12:19:311:02:3910:0530:43
9:53
#23809
15K
9.32 mi12:50:021:33:1010:0030:31
9:49
#23593
20K
12.43 mi13:21:192:04:2710:0131:17
10:04
#23438
Half
13.11 mi13:28:062:11:1410:016:47
9:57
#23432
25K
15.53 mi13:53:342:36:4210:0525:28
10:30
#23397
30K
18.64 mi14:29:483:12:5610:2136:14
11:40
#23525
20M
20.00 mi14:47:473:30:5510:3317:59
13:14
#23751
21M
21.00 mi15:02:063:45:1410:4414:19
14:19
#23907
35K
21.75 mi15:12:093:55:1710:4910:03
13:26
#24040
23M
23.00 mi15:28:284:11:3610:5616:19
13:02
#24133
24M
24.00 mi15:42:584:26:0611:0514:30
14:30
#24319
40K
24.85 mi15:55:214:38:2911:1212:23
14:29
#24458
25.2M
25.20 mi15:59:584:43:0611:144:37
13:23
#24464
Finish
26.22 mi16:11:194:54:2711:1411:21
11:08
#24465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi241719973997323115(Top 87%)9410(Top 82%)9410(Top 193%)
10K6.21 mi3.10 mi23809+3629790+1839790+18323457(Top 88%)9597(Top 84%)9597(Top 196%)
15K9.32 mi3.11 mi23593+2169666+1249666+12423115(Top 87%)9410(Top 82%)9410(Top 193%)
20K12.43 mi3.11 mi23438+1559572+949572+9423064(Top 87%)9383(Top 82%)9383(Top 192%)
Half13.11 mi0.68 mi23432+69566+69566+623188(Top 87%)9467(Top 83%)9467(Top 194%)
25K15.53 mi2.42 mi23397+359563+39563+323217(Top 87%)9505(Top 83%)9505(Top 195%)
30K18.64 mi3.11 mi23525-1289659-969659-9624077(Top 90%)10056(Top 88%)10056(Top 206%)
20M20.00 mi1.36 mi23751-2269791-1329791-13225348(Top 95%)10778(Top 94%)10778(Top 221%)
21M21.00 mi1.00 mi23907-1569887-969887-9625308(Top 95%)10763(Top 94%)10763(Top 220%)
35K21.75 mi0.75 mi24040-1339967-809967-8025839(Top 97%)11058(Top 97%)11058(Top 226%)
23M23.00 mi1.25 mi24133-9310039-7210039-7225121(Top 94%)10696(Top 94%)10696(Top 219%)
24M24.00 mi1.00 mi24319-18610142-10310142-10326263(Top 99%)11281(Top 99%)11281(Top 231%)
40K24.85 mi0.85 mi24458-13910225-8310225-8325945(Top 97%)11149(Top 98%)11149(Top 228%)
25.2M25.20 mi0.35 mi24464-610233-810233-824421(Top 92%)10388(Top 91%)10388(Top 213%)
Finish26.22 mi1.02 mi24465-110241-810241-824217(Top 91%)10260(Top 90%)10260(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23115

Females

9410

F18-39

9410

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23457

Females

9597

F18-39

9597

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23115

Females

9410

F18-39

9410

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23064

Females

9383

F18-39

9383

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23188

Females

9467

F18-39

9467

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23217

Females

9505

F18-39

9505

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

24077

Females

10056

F18-39

10056

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

25348

Females

10778

F18-39

10778

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

25308

Females

10763

F18-39

10763

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25839

Females

11058

F18-39

11058

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

25121

Females

10696

F18-39

10696

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

26263

Females

11281

F18-39

11281

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25945

Females

11149

F18-39

11149

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24421

Females

10388

F18-39

10388

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

24217

Females

10260

F18-39

10260

Passing Analysis

Category:
Athletes Passed
1163
Passed By
1457
Net Change
-294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24171
5K → 10K43977+362#24171#23809
10K → 15K24933+216#23809#23593
15K → 20K20449+155#23593#23438
20K → Half3125+6#23438#23432
Half → 25K10267+35#23432#23397
25K → 30K60188-128#23397#23525
30K → 20M15241-226#23525#23751
20M → 21M11167-156#23751#23907
21M → 35K4137-133#23907#24040
35K → 23M12105-93#24040#24133
23M → 24M3189-186#24133#24319
24M → 40K4143-139#24319#24458
40K → 25.2M713-6#24458#24464
25.2M → Finish2223-1#24464#24465
TOTALS11631457-294
📊

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