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BOSTON MARATHON 2023

Cathy Delamore

Bib: 31963•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
10:39/mi
33:05
↑ 97↓ 3451.5%
10K· 6.21 mi
10:42/mi
1:06:20
↑ 79↓ 1380.4%
15K· 9.32 mi
11:00/mi
1:40:32
↑ 67↓ 78
20K· 12.43 mi
10:59/mi
2:14:39
↑ 106↓ 860.1%
Half· 13.11 mi
10:30/mi
2:21:49
↑ 19↓ 370.5%
25K· 15.53 mi
11:19/mi
2:49:16
↑ 66↓ 880.2%
30K· 18.64 mi
12:57/mi
3:29:30
↑ 181↓ 1480.2%
20M
13:07/mi
3:47:19
↑ 64↓ 500.2%
21M
13:26/mi
4:00:45
↑ 106↓ 241.6%
35K· 21.75 mi
11:54/mi
4:09:39
↑ 17↓ 861.7%
23M
11:57/mi
4:24:37
↑ 23↓ 630.6%
24M
11:10/mi
4:35:47
↓ 821.3%
40K· 24.85 mi
11:58/mi
4:46:01
↓ 200.3%
25.2M
13:03/mi
4:50:31
↑ 13↓ 160.2%
Finish· 26.22 mi
10:59/mi
5:01:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:49
Pace10:49 /mi
2nd Half
Distance13.11 mi
Time2:39:54
Pace12:12 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1833:0510:3933:05
10:39
-
10K
6.21 mi12:26:331:06:2010:4133:15
10:42
+0:03
15K
9.32 mi13:00:451:40:3210:4734:12
11:00
+0:18
20K
12.43 mi13:34:522:14:3910:5034:07
10:59
-0:01
Half
13.11 mi13:42:022:21:4910:497:10
10:30
-0:29
25K
15.53 mi14:09:292:49:1610:5427:27
11:19
+0:49
30K
18.64 mi14:49:433:29:3011:1440:14
12:57
+1:38
20M
20.00 mi15:07:323:47:1911:2217:49
13:07
+0:10
21M
21.00 mi15:20:584:00:4511:2813:26
13:26
+0:19
35K
21.75 mi15:29:524:09:3911:298:54
11:54
-1:32
23M
23.00 mi15:44:504:24:3711:3014:58
11:57
+0:03
24M
24.00 mi15:56:004:35:4711:2911:10
11:10
-0:47
40K
24.85 mi16:06:144:46:0111:3010:14
11:58
+0:48
25.2M
25.20 mi16:10:444:50:3111:324:30
13:03
+1:05
Finish
26.22 mi16:21:565:01:4311:3111:12
10:59
-2:04

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

10:30 /mi

Average Pace

11:31 /mi

Slowest Pace

13:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:30

24% of race

Time at Steady Pace

1:58:08

39% of race

Time at Slower Pace

1:50:05

36% of race

Average Pace: 11:30 /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 mi11:53:1833:0510:3933:05
10:39
#25077
10K
6.21 mi12:26:331:06:2010:4133:15
10:42
#25053
15K
9.32 mi13:00:451:40:3210:4734:12
11:00
#25115
20K
12.43 mi13:34:522:14:3910:5034:07
10:59
#24969
Half
13.11 mi13:42:022:21:4910:497:10
10:30
#24925
25K
15.53 mi14:09:292:49:1610:5427:27
11:19
#24852
30K
18.64 mi14:49:433:29:3011:1440:14
12:57
#25019
20M
20.00 mi15:07:323:47:1911:2217:49
13:07
#25056
21M
21.00 mi15:20:584:00:4511:2813:26
13:26
#25054
35K
21.75 mi15:29:524:09:3911:298:54
11:54
#25041
23M
23.00 mi15:44:504:24:3711:3014:58
11:57
#24999
24M
24.00 mi15:56:004:35:4711:2911:10
11:10
#24957
40K
24.85 mi16:06:144:46:0111:3010:14
11:58
#24915
25.2M
25.20 mi16:10:444:50:3111:324:30
13:03
#24913
Finish
26.22 mi16:21:565:01:4311:3111:12
10:59
#24894
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25077104771047725180(Top 95%)10560(Top 92%)10560(Top 1296%)
10K6.21 mi3.10 mi25053+2410462+1510462+1525028(Top 94%)10456(Top 92%)10456(Top 1283%)
15K9.32 mi3.11 mi25115-6210503-4110503-4125180(Top 95%)10560(Top 92%)10560(Top 1296%)
20K12.43 mi3.11 mi24969+14610438+6510438+6524614(Top 92%)10265(Top 90%)10265(Top 1260%)
Half13.11 mi0.68 mi24925+4410419+1910419+1924239(Top 91%)10061(Top 88%)10061(Top 1234%)
25K15.53 mi2.42 mi24852+7310385+3410385+3424445(Top 92%)10202(Top 89%)10202(Top 1252%)
30K18.64 mi3.11 mi25019-16710496-11110496-11125368(Top 95%)10773(Top 94%)10773(Top 1322%)
20M20.00 mi1.36 mi25056-3710528-3210528-3225265(Top 95%)10736(Top 94%)10736(Top 1317%)
21M21.00 mi1.00 mi25054+210536-810536-824523(Top 92%)10357(Top 91%)10357(Top 1271%)
35K21.75 mi0.75 mi25041+13105361053624584(Top 92%)10446(Top 91%)10446(Top 1282%)
23M23.00 mi1.25 mi24999+4210522+1410522+1423947(Top 90%)10095(Top 88%)10095(Top 1239%)
24M24.00 mi1.00 mi24957+4210503+1910503+1923356(Top 88%)9833(Top 86%)9833(Top 1207%)
40K24.85 mi0.85 mi24915+4210486+1710486+1723869(Top 90%)10118(Top 89%)10118(Top 1241%)
25.2M25.20 mi0.35 mi24913+210487-110487-124049(Top 90%)10214(Top 89%)10214(Top 1253%)
Finish26.22 mi1.02 mi24894+1910484+310484+323966(Top 90%)10151(Top 89%)10151(Top 1246%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25180

Females

10560

F55-59

10560

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

25028

Females

10456

F55-59

10456

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25180

Females

10560

F55-59

10560

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24614

Females

10265

F55-59

10265

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24239

Females

10061

F55-59

10061

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

24445

Females

10202

F55-59

10202

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25368

Females

10773

F55-59

10773

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25265

Females

10736

F55-59

10736

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24523

Females

10357

F55-59

10357

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24584

Females

10446

F55-59

10446

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

23947

Females

10095

F55-59

10095

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23356

Females

9833

F55-59

9833

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23869

Females

10118

F55-59

10118

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24049

Females

10214

F55-59

10214

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

23966

Females

10151

F55-59

10151

Passing Analysis

Category:
Athletes Passed
928
Passed By
745
Net Change
+183
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25077
5K → 10K182158+24#25077#25053
10K → 15K84146-62#25053#25115
15K → 20K18135+146#25115#24969
20K → Half440+44#24969#24925
Half → 25K10633+73#24925#24852
25K → 30K43210-167#24852#25019
30K → 20M3370-37#25019#25056
20M → 21M3230+2#25056#25054
21M → 35K2916+13#25054#25041
35K → 23M497+42#25041#24999
23M → 24M5210+42#24999#24957
24M → 40K5513+42#24957#24915
40K → 25.2M86+2#24915#24913
25.2M → Finish3011+19#24913#24894
TOTALS928745+183
📊

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