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BOSTON MARATHON 2023

Carolyn Brice

Bib: 12712•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Division (F18-39)
#0 / 4884
Top 47%
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
7:58/mi
24:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
49:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:13:05
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:37:19
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:42:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:01:38
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:26:58
↑ 181↓ 1480.2%
20M
8:20/mi
2:38:17
↑ 64↓ 500.2%
21M
8:50/mi
2:47:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:53:05
↑ 17↓ 861.7%
23M
8:10/mi
3:03:19
↑ 23↓ 630.6%
24M
8:06/mi
3:11:25
↓ 821.3%
40K· 24.85 mi
8:32/mi
3:18:43
↓ 200.3%
25.2M
8:59/mi
3:21:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:30:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:31
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:47:48
Pace8:13 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1724:447:5824:44
7:58
-
10K
6.21 mi11:16:3449:017:5324:17
7:49
-0:09
15K
9.32 mi11:40:381:13:057:5024:04
7:45
-0:04
20K
12.43 mi12:04:521:37:197:5024:14
7:48
+0:03
Half
13.11 mi12:10:041:42:317:495:12
7:37
-0:11
25K
15.53 mi12:29:112:01:387:5019:07
7:53
+0:16
30K
18.64 mi12:54:312:26:587:5325:20
8:09
+0:16
20M
20.00 mi13:05:502:38:177:5511:19
8:20
+0:11
21M
21.00 mi13:14:402:47:077:578:50
8:50
+0:30
35K
21.75 mi13:20:382:53:057:585:58
7:59
-0:51
23M
23.00 mi13:30:523:03:197:5810:14
8:10
+0:11
24M
24.00 mi13:38:583:11:257:598:06
8:06
-0:04
40K
24.85 mi13:46:163:18:438:007:18
8:32
+0:26
25.2M
25.20 mi13:49:223:21:498:013:06
8:59
+0:27
Finish
26.22 mi13:57:523:30:198:028:30
8:20
-0:39

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

7:37 /mi

Average Pace

8:02 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:05

91% of race

Time at Steady Pace

19:14

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi10:52:1724:447:5824:44
7:58
#13740
10K
6.21 mi11:16:3449:017:5324:17
7:49
#13498
15K
9.32 mi11:40:381:13:057:5024:04
7:45
#13051
20K
12.43 mi12:04:521:37:197:5024:14
7:48
#12675
Half
13.11 mi12:10:041:42:317:495:12
7:37
#12574
25K
15.53 mi12:29:112:01:387:5019:07
7:53
#12444
30K
18.64 mi12:54:312:26:587:5325:20
8:09
#12343
20M
20.00 mi13:05:502:38:177:5511:19
8:20
#12334
21M
21.00 mi13:14:402:47:077:578:50
8:50
#12321
35K
21.75 mi13:20:382:53:057:585:58
7:59
#12302
23M
23.00 mi13:30:523:03:197:5810:14
8:10
#12229
24M
24.00 mi13:38:583:11:257:598:06
8:06
#12218
40K
24.85 mi13:46:163:18:438:007:18
8:32
#12253
25.2M
25.20 mi13:49:223:21:498:013:06
8:59
#12255
Finish
26.22 mi13:57:523:30:198:028:30
8:20
#12362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137403867386712278(Top 46%)3065(Top 27%)3065(Top 63%)
10K6.21 mi3.10 mi13498+2423734+1333734+13313275(Top 50%)3593(Top 31%)3593(Top 74%)
15K9.32 mi3.11 mi13051+4473491+2433491+24312278(Top 46%)3065(Top 27%)3065(Top 63%)
20K12.43 mi3.11 mi12675+3763296+1953296+19511768(Top 44%)2831(Top 25%)2831(Top 58%)
Half13.11 mi0.68 mi12574+1013250+463250+4611305(Top 42%)2536(Top 22%)2536(Top 52%)
25K15.53 mi2.42 mi12444+1303196+543196+5411818(Top 44%)2971(Top 26%)2971(Top 61%)
30K18.64 mi3.11 mi12343+1013173+233173+2312037(Top 45%)3205(Top 28%)3205(Top 66%)
20M20.00 mi1.36 mi12334+93179-63179-612546(Top 47%)3603(Top 32%)3603(Top 74%)
21M21.00 mi1.00 mi12321+133184-53184-512463(Top 47%)3662(Top 32%)3662(Top 75%)
35K21.75 mi0.75 mi12302+193196-123196-1211981(Top 45%)3417(Top 30%)3417(Top 70%)
23M23.00 mi1.25 mi12229+733183+133183+1311024(Top 41%)3034(Top 27%)3034(Top 62%)
24M24.00 mi1.00 mi12218+113197-143197-1411966(Top 45%)3567(Top 31%)3567(Top 73%)
40K24.85 mi0.85 mi12253-353233-363233-3613594(Top 51%)4515(Top 40%)4515(Top 92%)
25.2M25.20 mi0.35 mi12255-23245-123245-1212510(Top 47%)3969(Top 35%)3969(Top 81%)
Finish26.22 mi1.02 mi12362-1073326-813326-8114358(Top 54%)4920(Top 43%)4920(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12278

Females

3065

F18-39

3065

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

13275

Females

3593

F18-39

3593

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12278

Females

3065

F18-39

3065

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11768

Females

2831

F18-39

2831

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11305

Females

2536

F18-39

2536

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11818

Females

2971

F18-39

2971

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12037

Females

3205

F18-39

3205

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12546

Females

3603

F18-39

3603

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12463

Females

3662

F18-39

3662

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11981

Females

3417

F18-39

3417

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11024

Females

3034

F18-39

3034

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11966

Females

3567

F18-39

3567

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13594

Females

4515

F18-39

4515

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12510

Females

3969

F18-39

3969

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14358

Females

4920

F18-39

4920

Passing Analysis

Category:
Athletes Passed
2457
Passed By
1079
Net Change
+1378
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13740
5K → 10K440198+242#13740#13498
10K → 15K50154+447#13498#13051
15K → 20K41034+376#13051#12675
20K → Half1021+101#12675#12574
Half → 25K18959+130#12574#12444
25K → 30K248147+101#12444#12343
30K → 20M10293+9#12343#12334
20M → 21M9683+13#12334#12321
21M → 35K5536+19#12321#12302
35K → 23M12754+73#12302#12229
23M → 24M6251+11#12229#12218
24M → 40K4984-35#12218#12253
40K → 25.2M3335-2#12253#12255
25.2M → Finish43150-107#12255#12362
TOTALS24571079+1378
📊

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