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BOSTON MARATHON 2023

Sumiko Campbell

Bib: 22711•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
9:06/mi
28:15
↑ 97↓ 3451.5%
10K· 6.21 mi
9:11/mi
56:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:20/mi
1:25:46
↑ 67↓ 78
20K· 12.43 mi
9:19/mi
1:54:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
2:00:58
↑ 19↓ 370.5%
25K· 15.53 mi
9:05/mi
2:23:00
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:51:41
↑ 181↓ 1480.2%
20M
9:00/mi
3:03:55
↑ 64↓ 500.2%
21M
9:16/mi
3:13:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:19:40
↑ 17↓ 861.7%
23M
8:45/mi
3:30:37
↑ 23↓ 630.6%
24M
8:16/mi
3:38:53
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:46:07
↓ 200.3%
25.2M
8:56/mi
3:49:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:57:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:00:58
Pace9:14 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:31
Pace8:53 /mi
📊Negative Split: 3.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2928:159:0628:15
9:06
-
10K
6.21 mi11:51:0156:479:0828:32
9:11
+0:05
15K
9.32 mi12:20:001:25:469:1228:59
9:20
+0:09
20K
12.43 mi12:48:581:54:449:1428:58
9:19
-0:01
Half
13.11 mi12:55:122:00:589:146:14
9:08
-0:11
25K
15.53 mi13:17:142:23:009:1222:02
9:05
-0:03
30K
18.64 mi13:45:552:51:419:1328:41
9:14
+0:09
20M
20.00 mi13:58:093:03:559:1212:14
9:00
-0:14
21M
21.00 mi14:07:253:13:119:129:16
9:16
+0:16
35K
21.75 mi14:13:543:19:409:116:29
8:40
-0:36
23M
23.00 mi14:24:513:30:379:0910:57
8:45
+0:05
24M
24.00 mi14:33:073:38:539:078:16
8:16
-0:29
40K
24.85 mi14:40:213:46:079:067:14
8:28
+0:12
25.2M
25.20 mi14:43:263:49:129:063:05
8:56
+0:28
Finish
26.22 mi14:51:433:57:299:048:17
8:08
-0:48

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

8:08 /mi

Average Pace

9:04 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:18

19% of race

Time at Steady Pace

3:13:11

81% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:22:2928:159:0628:15
9:06
#20841
10K
6.21 mi11:51:0156:479:0828:32
9:11
#21207
15K
9.32 mi12:20:001:25:469:1228:59
9:20
#21372
20K
12.43 mi12:48:581:54:449:1428:58
9:19
#21290
Half
13.11 mi12:55:122:00:589:146:14
9:08
#21271
25K
15.53 mi13:17:142:23:009:1222:02
9:05
#20951
30K
18.64 mi13:45:552:51:419:1328:41
9:14
#20495
20M
20.00 mi13:58:093:03:559:1212:14
9:00
#20238
21M
21.00 mi14:07:253:13:119:129:16
9:16
#19944
35K
21.75 mi14:13:543:19:409:116:29
8:40
#19809
23M
23.00 mi14:24:513:30:379:0910:57
8:45
#19552
24M
24.00 mi14:33:073:38:539:078:16
8:16
#19317
40K
24.85 mi14:40:213:46:079:067:14
8:28
#19127
25.2M
25.20 mi14:43:263:49:129:063:05
8:56
#19034
Finish
26.22 mi14:51:433:57:299:048:17
8:08
#18862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi208418291829121727(Top 82%)8630(Top 76%)8630(Top 475%)
10K6.21 mi3.10 mi21207-3668424-1338424-13321577(Top 81%)8587(Top 75%)8587(Top 473%)
15K9.32 mi3.11 mi21372-1658486-628486-6221727(Top 82%)8630(Top 76%)8630(Top 475%)
20K12.43 mi3.11 mi21290+828426+608426+6021039(Top 79%)8254(Top 72%)8254(Top 454%)
Half13.11 mi0.68 mi21271+198412+148412+1420957(Top 79%)8213(Top 72%)8213(Top 452%)
25K15.53 mi2.42 mi20951+3208234+1788234+17819365(Top 73%)7344(Top 64%)7344(Top 404%)
30K18.64 mi3.11 mi20495+4568003+2318003+23118319(Top 69%)6823(Top 60%)6823(Top 376%)
20M20.00 mi1.36 mi20238+2577877+1267877+12616582(Top 62%)5919(Top 52%)5919(Top 326%)
21M21.00 mi1.00 mi19944+2947714+1637714+16314858(Top 56%)4977(Top 44%)4977(Top 274%)
35K21.75 mi0.75 mi19809+1357636+787636+7816299(Top 61%)5884(Top 52%)5884(Top 324%)
23M23.00 mi1.25 mi19552+2577496+1407496+14014716(Top 55%)5029(Top 44%)5029(Top 277%)
24M24.00 mi1.00 mi19317+2357364+1327364+13213114(Top 49%)4203(Top 37%)4203(Top 231%)
40K24.85 mi0.85 mi19127+1907271+937271+9313138(Top 49%)4294(Top 38%)4294(Top 236%)
25.2M25.20 mi0.35 mi19034+937223+487223+4812305(Top 46%)3918(Top 34%)3918(Top 216%)
Finish26.22 mi1.02 mi18862+1727130+937130+9313022(Top 49%)4238(Top 37%)4238(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21727

Females

8630

F45-49

8630

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21577

Females

8587

F45-49

8587

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21727

Females

8630

F45-49

8630

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

21039

Females

8254

F45-49

8254

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20957

Females

8213

F45-49

8213

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19365

Females

7344

F45-49

7344

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18319

Females

6823

F45-49

6823

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16582

Females

5919

F45-49

5919

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14858

Females

4977

F45-49

4977

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16299

Females

5884

F45-49

5884

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14716

Females

5029

F45-49

5029

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13114

Females

4203

F45-49

4203

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13138

Females

4294

F45-49

4294

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12305

Females

3918

F45-49

3918

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13022

Females

4238

F45-49

4238

Passing Analysis

Category:
Athletes Passed
2890
Passed By
911
Net Change
+1979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20841
5K → 10K143509-366#20841#21207
10K → 15K93258-165#21207#21372
15K → 20K187105+82#21372#21290
20K → Half3213+19#21290#21271
Half → 25K3244+320#21271#20951
25K → 30K4637+456#20951#20495
30K → 20M2625+257#20495#20238
20M → 21M2962+294#20238#19944
21M → 35K1372+135#19944#19809
35K → 23M2581+257#19809#19552
23M → 24M2361+235#19552#19317
24M → 40K1933+190#19317#19127
40K → 25.2M930+93#19127#19034
25.2M → Finish1731+172#19034#18862
TOTALS2890911+1979
📊

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