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BOSTON MARATHON 2023

Mary Rockwood

Bib: 26193•F

FL

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
10:03/mi
31:13
↑ 97↓ 3451.5%
10K· 6.21 mi
9:53/mi
1:01:55
↑ 79↓ 1380.4%
15K· 9.32 mi
10:03/mi
1:33:07
↑ 67↓ 78
20K· 12.43 mi
9:44/mi
2:03:22
↑ 106↓ 860.1%
Half· 13.11 mi
9:36/mi
2:09:55
↑ 19↓ 370.5%
25K· 15.53 mi
10:26/mi
2:35:13
↑ 66↓ 880.2%
30K· 18.64 mi
10:47/mi
3:08:43
↑ 181↓ 1480.2%
20M
10:54/mi
3:23:32
↑ 64↓ 500.2%
21M
13:08/mi
3:36:40
↑ 106↓ 241.6%
35K· 21.75 mi
9:48/mi
3:44:00
↑ 17↓ 861.7%
23M
11:02/mi
3:57:49
↑ 23↓ 630.6%
24M
10:38/mi
4:08:27
↓ 821.3%
40K· 24.85 mi
10:32/mi
4:17:27
↓ 200.3%
25.2M
13:03/mi
4:21:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
4:31:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:55
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:21:49
Pace10:49 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0131:1310:0331:13
10:03
-
10K
6.21 mi12:24:431:01:559:5830:42
9:53
-0:10
15K
9.32 mi12:55:551:33:079:5931:12
10:03
+0:10
20K
12.43 mi13:26:102:03:229:5630:15
9:44
-0:19
Half
13.11 mi13:32:432:09:559:556:33
9:36
-0:08
25K
15.53 mi13:58:012:35:1310:0025:18
10:26
+0:50
30K
18.64 mi14:31:313:08:4310:0733:30
10:47
+0:21
20M
20.00 mi14:46:203:23:3210:1114:49
10:54
+0:07
21M
21.00 mi14:59:283:36:4010:1913:08
13:08
+2:14
35K
21.75 mi15:06:483:44:0010:187:20
9:48
-3:20
23M
23.00 mi15:20:373:57:4910:2013:49
11:02
+1:14
24M
24.00 mi15:31:154:08:2710:2110:38
10:38
-0:24
40K
24.85 mi15:40:154:17:2710:219:00
10:32
-0:06
25.2M
25.20 mi15:44:454:21:5710:244:30
13:03
+2:31
Finish
26.22 mi15:54:324:31:4410:229:47
9:36
-3:27

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

9:36 /mi

Average Pace

10:22 /mi

Slowest Pace

13:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:37

31% of race

Time at Steady Pace

2:35:40

57% of race

Time at Slower Pace

31:27

12% of race

Average Pace: 10:22 /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 mi11:54:0131:1310:0331:13
10:03
#23554
10K
6.21 mi12:24:431:01:559:5830:42
9:53
#23547
15K
9.32 mi12:55:551:33:079:5931:12
10:03
#23577
20K
12.43 mi13:26:102:03:229:5630:15
9:44
#23275
Half
13.11 mi13:32:432:09:559:556:33
9:36
#23209
25K
15.53 mi13:58:012:35:1310:0025:18
10:26
#23186
30K
18.64 mi14:31:313:08:4310:0733:30
10:47
#23094
20M
20.00 mi14:46:203:23:3210:1114:49
10:54
#23036
21M
21.00 mi14:59:283:36:4010:1913:08
13:08
#23134
35K
21.75 mi15:06:483:44:0010:187:20
9:48
#23062
23M
23.00 mi15:20:373:57:4910:2013:49
11:02
#23001
24M
24.00 mi15:31:154:08:2710:2110:38
10:38
#22974
40K
24.85 mi15:40:154:17:2710:219:00
10:32
#22907
25.2M
25.20 mi15:44:454:21:5710:244:30
13:03
#22921
Finish
26.22 mi15:54:324:31:4410:229:47
9:36
#22867
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi235549675967523581(Top 89%)9656(Top 85%)9656(Top 198%)
10K6.21 mi3.10 mi23547+79647+289647+2823448(Top 88%)9589(Top 84%)9589(Top 196%)
15K9.32 mi3.11 mi23577-309658-119658-1123581(Top 89%)9656(Top 85%)9656(Top 198%)
20K12.43 mi3.11 mi23275+3029498+1609498+16022260(Top 84%)8941(Top 78%)8941(Top 183%)
Half13.11 mi0.68 mi23209+669461+379461+3722421(Top 84%)9029(Top 79%)9029(Top 185%)
25K15.53 mi2.42 mi23186+239452+99452+923070(Top 87%)9431(Top 83%)9431(Top 193%)
30K18.64 mi3.11 mi23094+929435+179435+1722759(Top 85%)9331(Top 82%)9331(Top 191%)
20M20.00 mi1.36 mi23036+589418+179418+1722533(Top 85%)9265(Top 81%)9265(Top 190%)
21M21.00 mi1.00 mi23134-989480-629480-6224241(Top 91%)10219(Top 89%)10219(Top 209%)
35K21.75 mi0.75 mi23062+729448+329448+3220797(Top 78%)8397(Top 74%)8397(Top 172%)
23M23.00 mi1.25 mi23001+619426+229426+2222416(Top 84%)9274(Top 81%)9274(Top 190%)
24M24.00 mi1.00 mi22974+279421+59421+522313(Top 84%)9265(Top 81%)9265(Top 190%)
40K24.85 mi0.85 mi22907+679396+259396+2521289(Top 80%)8770(Top 77%)8770(Top 180%)
25.2M25.20 mi0.35 mi22921-149399-39399-324038(Top 90%)10203(Top 89%)10203(Top 209%)
Finish26.22 mi1.02 mi22867+549384+159384+1520504(Top 77%)8301(Top 73%)8301(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23581

Females

9656

F18-39

9656

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23448

Females

9589

F18-39

9589

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23581

Females

9656

F18-39

9656

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22260

Females

8941

F18-39

8941

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22421

Females

9029

F18-39

9029

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23070

Females

9431

F18-39

9431

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22759

Females

9331

F18-39

9331

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22533

Females

9265

F18-39

9265

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24241

Females

10219

F18-39

10219

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20797

Females

8397

F18-39

8397

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22416

Females

9274

F18-39

9274

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22313

Females

9265

F18-39

9265

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21289

Females

8770

F18-39

8770

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24038

Females

10203

F18-39

10203

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20504

Females

8301

F18-39

8301

Passing Analysis

Category:
Athletes Passed
1452
Passed By
765
Net Change
+687
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23554
5K → 10K212205+7#23554#23547
10K → 15K106136-30#23547#23577
15K → 20K32321+302#23577#23275
20K → Half693+66#23275#23209
Half → 25K11895+23#23209#23186
25K → 30K16169+92#23186#23094
30K → 20M8527+58#23094#23036
20M → 21M19117-98#23036#23134
21M → 35K742+72#23134#23062
35K → 23M8322+61#23062#23001
23M → 24M5528+27#23001#22974
24M → 40K769+67#22974#22907
40K → 25.2M923-14#22907#22921
25.2M → Finish628+54#22921#22867
TOTALS1452765+687
📊

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