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BOSTON MARATHON 2023

Debby Law

Bib: 31605•F

MA

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
10:03/mi
31:13
↑ 97↓ 3451.5%
10K· 6.21 mi
9:35/mi
1:00:59
↑ 79↓ 1380.4%
15K· 9.32 mi
10:05/mi
1:32:18
↑ 67↓ 78
20K· 12.43 mi
9:14/mi
2:01:00
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:07:17
↑ 19↓ 370.5%
25K· 15.53 mi
10:31/mi
2:32:46
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
3:04:02
↑ 181↓ 1480.2%
20M
10:53/mi
3:18:49
↑ 64↓ 500.2%
21M
11:49/mi
3:30:38
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
3:37:51
↑ 17↓ 861.7%
23M
11:12/mi
3:51:53
↑ 23↓ 630.6%
24M
10:01/mi
4:01:54
↓ 821.3%
40K· 24.85 mi
11:07/mi
4:11:24
↓ 200.3%
25.2M
11:56/mi
4:15:31
↑ 13↓ 160.2%
Finish· 26.22 mi
9:56/mi
4:25:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:17
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:18:21
Pace10:33 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0231:1310:0331:13
10:03
-
10K
6.21 mi12:21:481:00:599:4929:46
9:35
-0:28
15K
9.32 mi12:53:071:32:189:5431:19
10:05
+0:30
20K
12.43 mi13:21:492:01:009:4428:42
9:14
-0:51
Half
13.11 mi13:28:062:07:179:436:17
9:13
-0:01
25K
15.53 mi13:53:352:32:469:5025:29
10:31
+1:18
30K
18.64 mi14:24:513:04:029:5231:16
10:04
-0:27
20M
20.00 mi14:39:383:18:499:5614:47
10:53
+0:49
21M
21.00 mi14:51:273:30:3810:0211:49
11:49
+0:56
35K
21.75 mi14:58:403:37:5110:017:13
9:39
-2:10
23M
23.00 mi15:12:423:51:5310:0514:02
11:12
+1:33
24M
24.00 mi15:22:434:01:5410:0510:01
10:01
-1:11
40K
24.85 mi15:32:134:11:2410:079:30
11:07
+1:06
25.2M
25.20 mi15:36:204:15:3110:084:07
11:56
+0:49
Finish
26.22 mi15:46:274:25:3810:0810:07
9:56
-2:00

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

9:13 /mi

Average Pace

10:08 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:58

27% of race

Time at Steady Pace

1:53:56

43% of race

Time at Slower Pace

1:19:44

30% of race

Average Pace: 10:08 /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 mi11:52:0231:1310:0331:13
10:03
#23553
10K
6.21 mi12:21:481:00:599:4929:46
9:35
#23197
15K
9.32 mi12:53:071:32:189:5431:19
10:05
#23380
20K
12.43 mi13:21:492:01:009:4428:42
9:14
#22766
Half
13.11 mi13:28:062:07:179:436:17
9:13
#22705
25K
15.53 mi13:53:352:32:469:5025:29
10:31
#22797
30K
18.64 mi14:24:513:04:029:5231:16
10:04
#22500
20M
20.00 mi14:39:383:18:499:5614:47
10:53
#22496
21M
21.00 mi14:51:273:30:3810:0211:49
11:49
#22495
35K
21.75 mi14:58:403:37:5110:017:13
9:39
#22418
23M
23.00 mi15:12:423:51:5310:0514:02
11:12
#22441
24M
24.00 mi15:22:434:01:5410:0510:01
10:01
#22383
40K
24.85 mi15:32:134:11:2410:079:30
11:07
#22383
25.2M
25.20 mi15:36:204:15:3110:084:07
11:56
#22384
Finish
26.22 mi15:46:274:25:3810:0810:07
9:56
#22361
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi235539674967423664(Top 89%)9700(Top 85%)9700(Top 1190%)
10K6.21 mi3.10 mi23197+3569468+2069468+20622739(Top 85%)9206(Top 81%)9206(Top 1130%)
15K9.32 mi3.11 mi23380-1839545-779545-7723664(Top 89%)9700(Top 85%)9700(Top 1190%)
20K12.43 mi3.11 mi22766+6149221+3249221+32420732(Top 78%)8081(Top 71%)8081(Top 992%)
Half13.11 mi0.68 mi22705+619195+269195+2621236(Top 80%)8384(Top 73%)8384(Top 1029%)
25K15.53 mi2.42 mi22797-929252-579252-5723224(Top 87%)9507(Top 83%)9507(Top 1167%)
30K18.64 mi3.11 mi22500+2979125+1279125+12721202(Top 80%)8461(Top 74%)8461(Top 1038%)
20M20.00 mi1.36 mi22496+49134-99134-922487(Top 84%)9243(Top 81%)9243(Top 1134%)
21M21.00 mi1.00 mi22495+19141-79141-722454(Top 84%)9252(Top 81%)9252(Top 1135%)
35K21.75 mi0.75 mi22418+779100+419100+4120340(Top 76%)8140(Top 71%)8140(Top 999%)
23M23.00 mi1.25 mi22441-239120-209120-2022734(Top 85%)9453(Top 83%)9453(Top 1160%)
24M24.00 mi1.00 mi22383+589094+269094+2620853(Top 78%)8469(Top 74%)8469(Top 1039%)
40K24.85 mi0.85 mi223839105-119105-1122589(Top 85%)9444(Top 83%)9444(Top 1159%)
25.2M25.20 mi0.35 mi22384-19109-49109-422401(Top 84%)9349(Top 82%)9349(Top 1147%)
Finish26.22 mi1.02 mi22361+239102+79102+721577(Top 81%)8898(Top 78%)8898(Top 1092%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23664

Females

9700

F55-59

9700

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22739

Females

9206

F55-59

9206

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23664

Females

9700

F55-59

9700

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20732

Females

8081

F55-59

8081

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21236

Females

8384

F55-59

8384

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23224

Females

9507

F55-59

9507

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

21202

Females

8461

F55-59

8461

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22487

Females

9243

F55-59

9243

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22454

Females

9252

F55-59

9252

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20340

Females

8140

F55-59

8140

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22734

Females

9453

F55-59

9453

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20853

Females

8469

F55-59

8469

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22589

Females

9444

F55-59

9444

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22401

Females

9349

F55-59

9349

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21577

Females

8898

F55-59

8898

Passing Analysis

Category:
Athletes Passed
1969
Passed By
777
Net Change
+1192
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23553
5K → 10K43983+356#23553#23197
10K → 15K78261-183#23197#23380
15K → 20K6140+614#23380#22766
20K → Half632+61#22766#22705
Half → 25K66158-92#22705#22797
25K → 30K31114+297#22797#22500
30K → 20M5652+4#22500#22496
20M → 21M6059+1#22496#22495
21M → 35K825+77#22495#22418
35K → 23M4871-23#22418#22441
23M → 24M679+58#22441#22383
24M → 40K35350#22383#22383
40K → 25.2M1617-1#22383#22384
25.2M → Finish3411+23#22384#22361
TOTALS1969777+1192
📊

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