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BOSTON MARATHON 2023

Catherine Griffin

Bib: 26159•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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:56/mi
33:58
↑ 97↓ 3451.5%
10K· 6.21 mi
10:53/mi
1:07:47
↑ 79↓ 1380.4%
15K· 9.32 mi
11:20/mi
1:42:59
↑ 67↓ 78
20K· 12.43 mi
10:47/mi
2:16:30
↑ 106↓ 860.1%
Half· 13.11 mi
10:45/mi
2:23:50
↑ 19↓ 370.5%
25K· 15.53 mi
11:15/mi
2:51:07
↑ 66↓ 880.2%
30K· 18.64 mi
11:22/mi
3:26:26
↑ 181↓ 1480.2%
20M
12:27/mi
3:43:21
↑ 64↓ 500.2%
21M
14:12/mi
3:57:33
↑ 106↓ 241.6%
35K· 21.75 mi
11:52/mi
4:06:26
↑ 17↓ 861.7%
23M
12:59/mi
4:22:41
↑ 23↓ 630.6%
24M
11:19/mi
4:34:00
↓ 821.3%
40K· 24.85 mi
11:13/mi
4:43:35
↓ 200.3%
25.2M
11:39/mi
4:47:36
↑ 13↓ 160.2%
Finish· 26.22 mi
10:09/mi
4:57:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:50
Pace10:58 /mi
2nd Half
Distance13.11 mi
Time2:34:07
Pace11:45 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1033:5810:5633:58
10:56
-
10K
6.21 mi12:24:591:07:4710:5533:49
10:53
-0:03
15K
9.32 mi13:00:111:42:5911:0335:12
11:20
+0:27
20K
12.43 mi13:33:422:16:3010:5933:31
10:47
-0:33
Half
13.11 mi13:41:022:23:5010:587:20
10:45
-0:02
25K
15.53 mi14:08:192:51:0711:0127:17
11:15
+0:30
30K
18.64 mi14:43:383:26:2611:0435:19
11:22
+0:07
20M
20.00 mi15:00:333:43:2111:1016:55
12:27
+1:05
21M
21.00 mi15:14:453:57:3311:1914:12
14:12
+1:45
35K
21.75 mi15:23:384:06:2611:208:53
11:52
-2:20
23M
23.00 mi15:39:534:22:4111:2516:15
12:59
+1:07
24M
24.00 mi15:51:124:34:0011:2511:19
11:19
-1:40
40K
24.85 mi16:00:474:43:3511:259:35
11:13
-0:06
25.2M
25.20 mi16:04:484:47:3611:254:01
11:39
+0:26
Finish
26.22 mi16:15:094:57:5711:2210:21
10:09
-1:30

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

10:09 /mi

Average Pace

11:22 /mi

Slowest Pace

14:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:12

17% of race

Time at Steady Pace

3:10:30

64% of race

Time at Slower Pace

56:15

19% of race

Average Pace: 11:22 /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 mi11:51:1033:5810:5633:58
10:56
#25578
10K
6.21 mi12:24:591:07:4710:5533:49
10:53
#25463
15K
9.32 mi13:00:111:42:5911:0335:12
11:20
#25514
20K
12.43 mi13:33:422:16:3010:5933:31
10:47
#25188
Half
13.11 mi13:41:022:23:5010:587:20
10:45
#25152
25K
15.53 mi14:08:192:51:0711:0127:17
11:15
#25037
30K
18.64 mi14:43:383:26:2611:0435:19
11:22
#24793
20M
20.00 mi15:00:333:43:2111:1016:55
12:27
#24798
21M
21.00 mi15:14:453:57:3311:1914:12
14:12
#24832
35K
21.75 mi15:23:384:06:2611:208:53
11:52
#24828
23M
23.00 mi15:39:534:22:4111:2516:15
12:59
#24886
24M
24.00 mi15:51:124:34:0011:2511:19
11:19
#24836
40K
24.85 mi16:00:474:43:3511:259:35
11:13
#24789
25.2M
25.20 mi16:04:484:47:3611:254:01
11:39
#24754
Finish
26.22 mi16:15:094:57:5711:2210:21
10:09
#24696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25578107731077325543(Top 96%)10777(Top 94%)10777(Top 221%)
10K6.21 mi3.10 mi25463+11510708+6510708+6525325(Top 95%)10623(Top 93%)10623(Top 218%)
15K9.32 mi3.11 mi25514-5110745-3710745-3725543(Top 96%)10777(Top 94%)10777(Top 221%)
20K12.43 mi3.11 mi25188+32610563+18210563+18224307(Top 91%)10092(Top 88%)10092(Top 207%)
Half13.11 mi0.68 mi25152+3610545+1810545+1824608(Top 92%)10272(Top 90%)10272(Top 210%)
25K15.53 mi2.42 mi25037+11510482+6310482+6324344(Top 91%)10138(Top 89%)10138(Top 208%)
30K18.64 mi3.11 mi24793+24410373+10910373+10923678(Top 89%)9825(Top 86%)9825(Top 201%)
20M20.00 mi1.36 mi24798-510385-1210385-1224687(Top 93%)10439(Top 91%)10439(Top 214%)
21M21.00 mi1.00 mi24832-3410403-1810403-1825205(Top 95%)10711(Top 94%)10711(Top 219%)
35K21.75 mi0.75 mi24828+410412-910412-924558(Top 92%)10434(Top 91%)10434(Top 214%)
23M23.00 mi1.25 mi24886-5810454-4210454-4225062(Top 94%)10663(Top 93%)10663(Top 218%)
24M24.00 mi1.00 mi24836+5010435+1910435+1923627(Top 89%)9963(Top 87%)9963(Top 204%)
40K24.85 mi0.85 mi24789+4710413+2210413+2222767(Top 86%)9536(Top 83%)9536(Top 195%)
25.2M25.20 mi0.35 mi24754+3510396+1710396+1721908(Top 82%)9092(Top 80%)9092(Top 186%)
Finish26.22 mi1.02 mi24696+5810366+3010366+3022204(Top 83%)9238(Top 81%)9238(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25543

Females

10777

F18-39

10777

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25325

Females

10623

F18-39

10623

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25543

Females

10777

F18-39

10777

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24307

Females

10092

F18-39

10092

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24608

Females

10272

F18-39

10272

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24344

Females

10138

F18-39

10138

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23678

Females

9825

F18-39

9825

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24687

Females

10439

F18-39

10439

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

25205

Females

10711

F18-39

10711

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24558

Females

10434

F18-39

10434

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25062

Females

10663

F18-39

10663

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23627

Females

9963

F18-39

9963

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22767

Females

9536

F18-39

9536

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21908

Females

9092

F18-39

9092

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22204

Females

9238

F18-39

9238

Passing Analysis

Category:
Athletes Passed
1360
Passed By
478
Net Change
+882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25578
5K → 10K215100+115#25578#25463
10K → 15K79130-51#25463#25514
15K → 20K3271+326#25514#25188
20K → Half437+36#25188#25152
Half → 25K13116+115#25152#25037
25K → 30K2539+244#25037#24793
30K → 20M4954-5#24793#24798
20M → 21M1650-34#24798#24832
21M → 35K2723+4#24832#24828
35K → 23M1169-58#24828#24886
23M → 24M577+50#24886#24836
24M → 40K569+47#24836#24789
40K → 25.2M350+35#24789#24754
25.2M → Finish613+58#24754#24696
TOTALS1360478+882
📊

Passing Visuals

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