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BOSTON MARATHON 2023

Alicia South

Bib: 22244•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
8:33/mi
26:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:35/mi
53:16
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:20:32
↑ 67↓ 78
20K· 12.43 mi
9:11/mi
1:49:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:55:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:22/mi
2:17:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:22/mi
2:49:56
↑ 181↓ 1480.2%
20M
10:00/mi
3:03:31
↑ 64↓ 500.2%
21M
10:58/mi
3:14:29
↑ 106↓ 241.6%
35K· 21.75 mi
10:44/mi
3:22:31
↑ 17↓ 861.7%
23M
14:11/mi
3:40:17
↑ 23↓ 630.6%
24M
8:36/mi
3:48:53
↓ 821.3%
40K· 24.85 mi
10:29/mi
3:57:51
↓ 200.3%
25.2M
13:03/mi
4:02:21
↑ 13↓ 160.2%
Finish· 26.22 mi
10:11/mi
4:12:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:02
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:17:42
Pace10:30 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5226:358:3326:35
8:33
-
10K
6.21 mi11:48:3353:168:3426:41
8:35
+0:02
15K
9.32 mi12:15:491:20:328:3827:16
8:47
+0:12
20K
12.43 mi12:44:201:49:038:4628:31
9:11
+0:24
Half
13.11 mi12:50:191:55:028:465:59
8:46
-0:25
25K
15.53 mi13:13:012:17:448:5222:42
9:22
+0:36
30K
18.64 mi13:45:132:49:569:0732:12
10:22
+1:00
20M
20.00 mi13:58:483:03:319:1113:35
10:00
-0:22
21M
21.00 mi14:09:463:14:299:1610:58
10:58
+0:58
35K
21.75 mi14:17:483:22:319:198:02
10:44
-0:14
23M
23.00 mi14:35:343:40:179:3517:46
14:11
+3:27
24M
24.00 mi14:44:103:48:539:328:36
8:36
-5:35
40K
24.85 mi14:53:083:57:519:348:58
10:29
+1:53
25.2M
25.20 mi14:57:384:02:219:374:30
13:03
+2:34
Finish
26.22 mi15:08:014:12:449:3910:23
10:11
-2:52

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

8:33 /mi

Average Pace

9:39 /mi

Slowest Pace

14:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:38

49% of race

Time at Steady Pace

1:35:52

38% of race

Time at Slower Pace

33:14

13% of race

Average Pace: 9:38 /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 mi11:21:5226:358:3326:35
8:33
#17958
10K
6.21 mi11:48:3353:168:3426:41
8:35
#18356
15K
9.32 mi12:15:491:20:328:3827:16
8:47
#18703
20K
12.43 mi12:44:201:49:038:4628:31
9:11
#19205
Half
13.11 mi12:50:191:55:028:465:59
8:46
#19204
25K
15.53 mi13:13:012:17:448:5222:42
9:22
#19444
30K
18.64 mi13:45:132:49:569:0732:12
10:22
#20137
20M
20.00 mi13:58:483:03:319:1113:35
10:00
#20161
21M
21.00 mi14:09:463:14:299:1610:58
10:58
#20196
35K
21.75 mi14:17:483:22:319:198:02
10:44
#20319
23M
23.00 mi14:35:343:40:179:3517:46
14:11
#21058
24M
24.00 mi14:44:103:48:539:328:36
8:36
#20834
40K
24.85 mi14:53:083:57:519:348:58
10:29
#20844
25.2M
25.20 mi14:57:384:02:219:374:30
13:03
#20926
Finish
26.22 mi15:08:014:12:449:3910:23
10:11
#20990
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi179586532653219391(Top 73%)7326(Top 64%)7326(Top 607%)
10K6.21 mi3.10 mi18356-3986733-2016733-20118802(Top 71%)6963(Top 61%)6963(Top 577%)
15K9.32 mi3.11 mi18703-3476944-2116944-21119391(Top 73%)7326(Top 64%)7326(Top 607%)
20K12.43 mi3.11 mi19205-5027241-2977241-29720491(Top 77%)7955(Top 70%)7955(Top 659%)
Half13.11 mi0.68 mi19204+17238+37238+319399(Top 73%)7332(Top 64%)7332(Top 607%)
25K15.53 mi2.42 mi19444-2407386-1487386-14820399(Top 77%)7927(Top 69%)7927(Top 657%)
30K18.64 mi3.11 mi20137-6937807-4217807-42121921(Top 82%)8861(Top 78%)8861(Top 734%)
20M20.00 mi1.36 mi20161-247837-307837-3020481(Top 77%)8123(Top 71%)8123(Top 673%)
21M21.00 mi1.00 mi20196-357861-247861-2420771(Top 78%)8340(Top 73%)8340(Top 691%)
35K21.75 mi0.75 mi20319-1237943-827943-8222813(Top 86%)9489(Top 83%)9489(Top 786%)
23M23.00 mi1.25 mi21058-7398364-4218364-42125939(Top 97%)11114(Top 97%)11114(Top 921%)
24M24.00 mi1.00 mi20834+2248252+1128252+11215110(Top 57%)5305(Top 46%)5305(Top 440%)
40K24.85 mi0.85 mi20844-108265-138265-1321192(Top 80%)8720(Top 76%)8720(Top 722%)
25.2M25.20 mi0.35 mi20926-828318-538318-5324032(Top 90%)10197(Top 89%)10197(Top 845%)
Finish26.22 mi1.02 mi20990-648365-478365-4722274(Top 84%)9265(Top 81%)9265(Top 768%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19391

Females

7326

F50-54

7326

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18802

Females

6963

F50-54

6963

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19391

Females

7326

F50-54

7326

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

20491

Females

7955

F50-54

7955

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19399

Females

7332

F50-54

7332

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20399

Females

7927

F50-54

7927

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21921

Females

8861

F50-54

8861

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20481

Females

8123

F50-54

8123

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20771

Females

8340

F50-54

8340

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22813

Females

9489

F50-54

9489

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25939

Females

11114

F50-54

11114

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15110

Females

5305

F50-54

5305

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21192

Females

8720

F50-54

8720

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24032

Females

10197

F50-54

10197

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22274

Females

9265

F50-54

9265

Passing Analysis

Category:
Athletes Passed
859
Passed By
3891
Net Change
-3032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17958
5K → 10K158556-398#17958#18356
10K → 15K78425-347#18356#18703
15K → 20K47549-502#18703#19205
20K → Half2928+1#19205#19204
Half → 25K55295-240#19204#19444
25K → 30K42735-693#19444#20137
30K → 20M82106-24#20137#20161
20M → 21M6398-35#20161#20196
21M → 35K14137-123#20196#20319
35K → 23M4743-739#20319#21058
23M → 24M2240+224#21058#20834
24M → 40K3646-10#20834#20844
40K → 25.2M183-82#20844#20926
25.2M → Finish2690-64#20926#20990
TOTALS8593891-3032
📊

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