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BOSTON MARATHON 2023

Sara Johnson

Bib: 9362•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Masters (Masters Women)
#0 / 6539
Top 2%
Division (F50-54)
#0 / 1207
Top 0.4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:40
Rank: #8090
Start → 5K
22:40 | 7:18/mi
10K· 6.21 mi
45:01
Rank: #8076 (+14)
5K → 10K
22:21 | 7:12/mi
15K· 9.32 mi
1:07:32
Rank: #8083 (-7)
10K → 15K
22:31 | 7:15/mi
20K· 12.43 mi
1:30:09
Rank: #7929 (+154)
15K → 20K
22:37 | 7:17/mi
Half· 13.11 mi
1:34:57
Rank: #7863 (+66)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:52:36
Rank: #7713 (+150)
Half → 25K
17:39 | 7:17/mi
30K· 18.64 mi
2:15:22
Rank: #7368 (+345)
25K → 30K
22:46 | 7:20/mi
20M
2:25:21
Rank: #7235 (+133)
30K → 20M
9:59 | 7:20/mi
21M
2:32:41
Rank: #6985 (+250)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:37:49
Rank: #6882 (+103)
21M → 35K
5:08 | 6:52/mi
23M
2:46:56
Rank: #6738 (+144)
35K → 23M
9:07 | 7:17/mi
24M
2:54:04
Rank: #6646 (+92)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
3:00:21
Rank: #6559 (+87)
24M → 40K
6:17 | 7:21/mi
25.2M
3:02:57
Rank: #6508 (+51)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:10:06
Rank: #6443 (+65)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:57
Pace7:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:09
Pace7:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3122:407:1822:40
7:18
-
10K
6.21 mi11:10:5245:017:1522:21
7:12
-0:06
15K
9.32 mi11:33:231:07:327:1522:31
7:15
+0:03
20K
12.43 mi11:56:001:30:097:1522:37
7:17
+0:02
Half
13.11 mi12:00:481:34:577:154:48
7:02
-0:15
25K
15.53 mi12:18:271:52:367:1517:39
7:17
+0:15
30K
18.64 mi12:41:132:15:227:1622:46
7:20
+0:03
20M
20.00 mi12:51:122:25:217:169:59
7:20
0:00
21M
21.00 mi12:58:322:32:417:167:20
7:20
0:00
35K
21.75 mi13:03:402:37:497:155:08
6:52
-0:28
23M
23.00 mi13:12:472:46:567:159:07
7:17
+0:25
24M
24.00 mi13:19:552:54:047:157:08
7:08
-0:09
40K
24.85 mi13:26:123:00:217:156:17
7:21
+0:13
25.2M
25.20 mi13:28:483:02:577:162:36
7:32
+0:11
Finish
26.22 mi13:35:573:10:067:157:09
7:01
-0:31

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

6:52 /mi

Average Pace

7:15 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:34

24% of race

Time at Steady Pace

2:23:32

76% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:48:3122:407:1822:40
7:18
#8090
10K
6.21 mi11:10:5245:017:1522:21
7:12
#8076
15K
9.32 mi11:33:231:07:327:1522:31
7:15
#8083
20K
12.43 mi11:56:001:30:097:1522:37
7:17
#7929
Half
13.11 mi12:00:481:34:577:154:48
7:02
#7863
25K
15.53 mi12:18:271:52:367:1517:39
7:17
#7713
30K
18.64 mi12:41:132:15:227:1622:46
7:20
#7368
20M
20.00 mi12:51:122:25:217:169:59
7:20
#7235
21M
21.00 mi12:58:322:32:417:167:20
7:20
#6985
35K
21.75 mi13:03:402:37:497:155:08
6:52
#6882
23M
23.00 mi13:12:472:46:567:159:07
7:17
#6738
24M
24.00 mi13:19:552:54:047:157:08
7:08
#6646
40K
24.85 mi13:26:123:00:217:156:17
7:21
#6559
25.2M
25.20 mi13:28:483:02:577:162:36
7:32
#6508
Finish
26.22 mi13:35:573:10:067:157:09
7:01
#6443
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi8090104610468139(Top 31%)1115(Top 10%)1115(Top 92%)
10K6.21 mi3.10 mi8076+141056-101056-108058(Top 30%)1062(Top 9%)1062(Top 88%)
15K9.32 mi3.11 mi8083-71068-121068-128139(Top 31%)1115(Top 10%)1115(Top 92%)
20K12.43 mi3.11 mi7929+1541026+421026+427635(Top 29%)973(Top 9%)973(Top 81%)
Half13.11 mi0.68 mi7863+661004+221004+226813(Top 26%)710(Top 6%)710(Top 59%)
25K15.53 mi2.42 mi7713+150972+32972+327167(Top 27%)891(Top 8%)891(Top 74%)
30K18.64 mi3.11 mi7368+345882+90882+906197(Top 23%)679(Top 6%)679(Top 56%)
20M20.00 mi1.36 mi7235+133856+26856+265863(Top 22%)677(Top 6%)677(Top 56%)
21M21.00 mi1.00 mi6985+250794+62794+623831(Top 14%)289(Top 3%)289(Top 24%)
35K21.75 mi0.75 mi6882+103780+14780+144618(Top 17%)425(Top 4%)425(Top 35%)
23M23.00 mi1.25 mi6738+144761+19761+195241(Top 20%)600(Top 5%)600(Top 50%)
24M24.00 mi1.00 mi6646+92751+10751+105399(Top 20%)679(Top 6%)679(Top 56%)
40K24.85 mi0.85 mi6559+87744+7744+75775(Top 22%)892(Top 8%)892(Top 74%)
25.2M25.20 mi0.35 mi6508+51738+6738+64169(Top 16%)495(Top 4%)495(Top 41%)
Finish26.22 mi1.02 mi6443+65727+11727+115335(Top 20%)834(Top 7%)834(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8139

Females

1115

F50-54

1115

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

8058

Females

1062

F50-54

1062

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8139

Females

1115

F50-54

1115

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7635

Females

973

F50-54

973

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6813

Females

710

F50-54

710

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7167

Females

891

F50-54

891

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6197

Females

679

F50-54

679

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5863

Females

677

F50-54

677

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3831

Females

289

F50-54

289

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4618

Females

425

F50-54

425

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5241

Females

600

F50-54

600

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5399

Females

679

F50-54

679

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5775

Females

892

F50-54

892

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4169

Females

495

F50-54

495

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5335

Females

834

F50-54

834

Passing Analysis

Category:
Athletes Passed
2160
Passed By
513
Net Change
+1647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8090
5K → 10K243229+14#8090#8076
10K → 15K130137-7#8076#8083
15K → 20K19945+154#8083#7929
20K → Half693+66#7929#7863
Half → 25K17424+150#7863#7713
25K → 30K35914+345#7713#7368
30K → 20M1374+133#7368#7235
20M → 21M2533+250#7235#6985
21M → 35K1052+103#6985#6882
35K → 23M1528+144#6882#6738
23M → 24M997+92#6738#6646
24M → 40K10417+87#6646#6559
40K → 25.2M532+51#6559#6508
25.2M → Finish8318+65#6508#6443
TOTALS2160513+1647
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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