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BOSTON MARATHON 2023

Sabrina Dubberly

Bib: 19344•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F40-44)
#0 / 1878
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
8:05/mi
25:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:14:48
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:12
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:45:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:06:09
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:33:07
↑ 181↓ 1480.2%
20M
8:48/mi
2:45:05
↑ 64↓ 500.2%
21M
9:38/mi
2:54:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:01:14
↑ 17↓ 861.7%
23M
9:14/mi
3:12:48
↑ 23↓ 630.6%
24M
9:00/mi
3:21:48
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:29:44
↓ 200.3%
25.2M
10:23/mi
3:33:19
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
3:43:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:49
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:57:26
Pace8:57 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0125:068:0525:06
8:05
-
10K
6.21 mi11:41:3349:387:5924:32
7:54
-0:11
15K
9.32 mi12:06:431:14:488:0225:10
8:06
+0:12
20K
12.43 mi12:32:071:40:128:0425:24
8:11
+0:05
Half
13.11 mi12:37:441:45:498:045:37
8:14
+0:03
25K
15.53 mi12:58:042:06:098:0720:20
8:23
+0:09
30K
18.64 mi13:25:022:33:078:1326:58
8:41
+0:18
20M
20.00 mi13:37:002:45:058:1511:58
8:48
+0:07
21M
21.00 mi13:46:382:54:438:199:38
9:38
+0:50
35K
21.75 mi13:53:093:01:148:206:31
8:43
-0:55
23M
23.00 mi14:04:433:12:488:2311:34
9:14
+0:31
24M
24.00 mi14:13:433:21:488:259:00
9:00
-0:14
40K
24.85 mi14:21:393:29:448:267:56
9:17
+0:17
25.2M
25.20 mi14:25:143:33:198:283:35
10:23
+1:06
Finish
26.22 mi14:35:103:43:158:319:56
9:45
-0:38

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

7:54 /mi

Average Pace

8:31 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:49

47% of race

Time at Steady Pace

1:14:47

33% of race

Time at Slower Pace

42:39

19% of race

Average Pace: 8:31 /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 mi11:17:0125:068:0525:06
8:05
#14571
10K
6.21 mi11:41:3349:387:5924:32
7:54
#14309
15K
9.32 mi12:06:431:14:488:0225:10
8:06
#14533
20K
12.43 mi12:32:071:40:128:0425:24
8:11
#14584
Half
13.11 mi12:37:441:45:498:045:37
8:14
#14668
25K
15.53 mi12:58:042:06:098:0720:20
8:23
#14789
30K
18.64 mi13:25:022:33:078:1326:58
8:41
#14915
20M
20.00 mi13:37:002:45:058:1511:58
8:48
#14927
21M
21.00 mi13:46:382:54:438:199:38
9:38
#15023
35K
21.75 mi13:53:093:01:148:206:31
8:43
#15070
23M
23.00 mi14:04:433:12:488:2311:34
9:14
#15180
24M
24.00 mi14:13:433:21:488:259:00
9:00
#15272
40K
24.85 mi14:21:393:29:448:267:56
9:17
#15384
25.2M
25.20 mi14:25:143:33:198:283:35
10:23
#15455
Finish
26.22 mi14:35:103:43:158:319:56
9:45
#15738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi145714371437115186(Top 57%)4786(Top 42%)4786(Top 255%)
10K6.21 mi3.10 mi14309+2624235+1364235+13613980(Top 53%)4036(Top 35%)4036(Top 215%)
15K9.32 mi3.11 mi14533-2244371-1364371-13615186(Top 57%)4786(Top 42%)4786(Top 255%)
20K12.43 mi3.11 mi14584-514422-514422-5114811(Top 56%)4598(Top 40%)4598(Top 245%)
Half13.11 mi0.68 mi14668-844474-524474-5216076(Top 60%)5344(Top 47%)5344(Top 285%)
25K15.53 mi2.42 mi14789-1214580-1064580-10615509(Top 58%)5147(Top 45%)5147(Top 274%)
30K18.64 mi3.11 mi14915-1264690-1104690-11015407(Top 58%)5173(Top 45%)5173(Top 275%)
20M20.00 mi1.36 mi14927-124722-324722-3215473(Top 58%)5259(Top 46%)5259(Top 280%)
21M21.00 mi1.00 mi15023-964812-904812-9016589(Top 62%)5959(Top 52%)5959(Top 317%)
35K21.75 mi0.75 mi15070-474861-494861-4916478(Top 62%)5977(Top 52%)5977(Top 318%)
23M23.00 mi1.25 mi15180-1104952-914952-9117249(Top 65%)6425(Top 56%)6425(Top 342%)
24M24.00 mi1.00 mi15272-925027-755027-7517244(Top 65%)6482(Top 57%)6482(Top 345%)
40K24.85 mi0.85 mi15384-1125115-885115-8817431(Top 65%)6640(Top 58%)6640(Top 354%)
25.2M25.20 mi0.35 mi15455-715169-545169-5418754(Top 70%)7358(Top 64%)7358(Top 392%)
Finish26.22 mi1.02 mi15738-2835337-1685337-16820968(Top 79%)8537(Top 75%)8537(Top 455%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15186

Females

4786

F40-44

4786

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13980

Females

4036

F40-44

4036

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15186

Females

4786

F40-44

4786

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14811

Females

4598

F40-44

4598

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16076

Females

5344

F40-44

5344

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15509

Females

5147

F40-44

5147

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15407

Females

5173

F40-44

5173

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15473

Females

5259

F40-44

5259

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16589

Females

5959

F40-44

5959

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16478

Females

5977

F40-44

5977

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17249

Females

6425

F40-44

6425

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17244

Females

6482

F40-44

6482

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17431

Females

6640

F40-44

6640

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18754

Females

7358

F40-44

7358

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

20968

Females

8537

F40-44

8537

Passing Analysis

Category:
Athletes Passed
1301
Passed By
2468
Net Change
-1167
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14571
5K → 10K446184+262#14571#14309
10K → 15K112336-224#14309#14533
15K → 20K167218-51#14533#14584
20K → Half791-84#14584#14668
Half → 25K106227-121#14668#14789
25K → 30K132258-126#14789#14915
30K → 20M7688-12#14915#14927
20M → 21M61157-96#14927#15023
21M → 35K3582-47#15023#15070
35K → 23M48158-110#15070#15180
23M → 24M48140-92#15180#15272
24M → 40K29141-112#15272#15384
40K → 25.2M1990-71#15384#15455
25.2M → Finish15298-283#15455#15738
TOTALS13012468-1167
📊

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