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BOSTON MARATHON 2023

Kerry Johnson

Bib: 19761•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Masters (Masters Women)
#0 / 6539
Top 27%
Division (F40-44)
#0 / 1878
Top 48%
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
8:01/mi
24:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:13:51
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:44:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:03:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:30:05
↑ 181↓ 1480.2%
20M
8:59/mi
2:42:18
↑ 64↓ 500.2%
21M
9:29/mi
2:51:47
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
2:58:16
↑ 17↓ 861.7%
23M
8:58/mi
3:09:30
↑ 23↓ 630.6%
24M
8:53/mi
3:18:23
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:25:56
↓ 200.3%
25.2M
9:52/mi
3:29:20
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:38:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:03
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:53:58
Pace8:42 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2524:558:0124:55
8:01
-
10K
6.21 mi11:40:5449:247:5724:29
7:53
-0:08
15K
9.32 mi12:05:211:13:517:5524:27
7:52
-0:01
20K
12.43 mi12:30:061:38:367:5624:45
7:58
+0:06
Half
13.11 mi12:35:331:44:037:565:27
7:59
+0:01
25K
15.53 mi12:55:162:03:467:5819:43
8:08
+0:09
30K
18.64 mi13:21:352:30:058:0326:19
8:28
+0:20
20M
20.00 mi13:33:482:42:188:0712:13
8:59
+0:31
21M
21.00 mi13:43:172:51:478:119:29
9:29
+0:30
35K
21.75 mi13:49:462:58:168:126:29
8:40
-0:49
23M
23.00 mi14:01:003:09:308:1411:14
8:58
+0:18
24M
24.00 mi14:09:533:18:238:168:53
8:53
-0:05
40K
24.85 mi14:17:263:25:568:177:33
8:50
-0:03
25.2M
25.20 mi14:20:503:29:208:183:24
9:52
+1:02
Finish
26.22 mi14:29:313:38:018:198:41
8:31
-1:21

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

7:52 /mi

Average Pace

8:19 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:46

57% of race

Time at Steady Pace

41:29

19% of race

Time at Slower Pace

52:46

24% of race

Average Pace: 8:19 /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 mi11:16:2524:558:0124:55
8:01
#14168
10K
6.21 mi11:40:5449:247:5724:29
7:53
#13991
15K
9.32 mi12:05:211:13:517:5524:27
7:52
#13767
20K
12.43 mi12:30:061:38:367:5624:45
7:58
#13582
Half
13.11 mi12:35:331:44:037:565:27
7:59
#13617
25K
15.53 mi12:55:162:03:467:5819:43
8:08
#13629
30K
18.64 mi13:21:352:30:058:0326:19
8:28
#13688
20M
20.00 mi13:33:482:42:188:0712:13
8:59
#13957
21M
21.00 mi13:43:172:51:478:119:29
9:29
#14073
35K
21.75 mi13:49:462:58:168:126:29
8:40
#14147
23M
23.00 mi14:01:003:09:308:1411:14
8:58
#14244
24M
24.00 mi14:09:533:18:238:168:53
8:53
#14368
40K
24.85 mi14:17:263:25:568:177:33
8:50
#14381
25.2M
25.20 mi14:20:503:29:208:183:24
9:52
#14424
Finish
26.22 mi14:29:313:38:018:198:41
8:31
#14435
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi141684129412913281(Top 50%)3656(Top 32%)3656(Top 195%)
10K6.21 mi3.10 mi13991+1774037+924037+9213830(Top 52%)3946(Top 35%)3946(Top 210%)
15K9.32 mi3.11 mi13767+2243924+1133924+11313281(Top 50%)3656(Top 32%)3656(Top 195%)
20K12.43 mi3.11 mi13582+1853833+913833+9113174(Top 49%)3644(Top 32%)3644(Top 194%)
Half13.11 mi0.68 mi13617-353856-233856-2314354(Top 54%)4298(Top 38%)4298(Top 229%)
25K15.53 mi2.42 mi13629-123887-313887-3113763(Top 52%)4079(Top 36%)4079(Top 217%)
30K18.64 mi3.11 mi13688-593953-663953-6614127(Top 53%)4410(Top 39%)4410(Top 235%)
20M20.00 mi1.36 mi13957-2694136-1834136-18316483(Top 62%)5848(Top 51%)5848(Top 311%)
21M21.00 mi1.00 mi14073-1164232-964232-9615892(Top 60%)5563(Top 49%)5563(Top 296%)
35K21.75 mi0.75 mi14147-744297-654297-6516240(Top 61%)5825(Top 51%)5825(Top 310%)
23M23.00 mi1.25 mi14244-974378-814378-8115916(Top 60%)5686(Top 50%)5686(Top 303%)
24M24.00 mi1.00 mi14368-1244471-934471-9316690(Top 63%)6184(Top 54%)6184(Top 329%)
40K24.85 mi0.85 mi14381-134506-354506-3515253(Top 57%)5435(Top 48%)5435(Top 289%)
25.2M25.20 mi0.35 mi14424-434543-374543-3716822(Top 63%)6313(Top 55%)6313(Top 336%)
Finish26.22 mi1.02 mi14435-114563-204563-2015557(Top 58%)5562(Top 49%)5562(Top 296%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13281

Females

3656

F40-44

3656

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13830

Females

3946

F40-44

3946

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13281

Females

3656

F40-44

3656

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13174

Females

3644

F40-44

3644

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14354

Females

4298

F40-44

4298

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13763

Females

4079

F40-44

4079

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14127

Females

4410

F40-44

4410

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16483

Females

5848

F40-44

5848

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

15892

Females

5563

F40-44

5563

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16240

Females

5825

F40-44

5825

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15916

Females

5686

F40-44

5686

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16690

Females

6184

F40-44

6184

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15253

Females

5435

F40-44

5435

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16822

Females

6313

F40-44

6313

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15557

Females

5562

F40-44

5562

Passing Analysis

Category:
Athletes Passed
1638
Passed By
1905
Net Change
-267
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14168
5K → 10K387210+177#14168#13991
10K → 15K31995+224#13991#13767
15K → 20K26580+185#13767#13582
20K → Half2055-35#13582#13617
Half → 25K124136-12#13617#13629
25K → 30K171230-59#13629#13688
30K → 20M39308-269#13688#13957
20M → 21M55171-116#13957#14073
21M → 35K2599-74#14073#14147
35K → 23M63160-97#14147#14244
23M → 24M40164-124#14244#14368
24M → 40K5871-13#14368#14381
40K → 25.2M1457-43#14381#14424
25.2M → Finish5869-11#14424#14435
TOTALS16381905-267
📊

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