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BOSTON MARATHON 2023

Lara Johnston

Bib: 20218•F

ON

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 (F50-54)
#0 / 1207
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:11
Rank: #14766
Start → 5K
25:11 | 8:06/mi
10K· 6.21 mi
49:56
Rank: #14647 (+119)
5K → 10K
24:45 | 7:58/mi
15K· 9.32 mi
1:14:52
Rank: #14595 (+52)
10K → 15K
24:56 | 8:02/mi
20K· 12.43 mi
1:39:57
Rank: #14411 (+184)
15K → 20K
25:05 | 8:04/mi
Half· 13.11 mi
1:45:18
Rank: #14348 (+63)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
2:05:00
Rank: #14253 (+95)
Half → 25K
19:42 | 8:08/mi
30K· 18.64 mi
2:31:03
Rank: #14133 (+120)
25K → 30K
26:03 | 8:23/mi
20M
2:42:38
Rank: #14093 (+40)
30K → 20M
11:35 | 8:31/mi
21M
2:51:49
Rank: #14088 (+5)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
2:57:59
Rank: #14042 (+46)
21M → 35K
6:10 | 8:15/mi
23M
3:08:49
Rank: #14025 (+17)
35K → 23M
10:50 | 8:39/mi
24M
3:17:31
Rank: #14101 (-76)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:25:26
Rank: #14244 (-143)
24M → 40K
7:55 | 9:16/mi
25.2M
3:28:49
Rank: #14278 (-34)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:38:00
Rank: #14433 (-155)
25.2M → Finish
9:11 | 9:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:18
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:52:42
Pace8:36 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3225:118:0625:11
8:06
-
10K
6.21 mi11:42:1749:568:0224:45
7:58
-0:08
15K
9.32 mi12:07:131:14:528:0224:56
8:02
+0:04
20K
12.43 mi12:32:181:39:578:0325:05
8:04
+0:02
Half
13.11 mi12:37:391:45:188:025:21
7:50
-0:14
25K
15.53 mi12:57:212:05:008:0319:42
8:08
+0:18
30K
18.64 mi13:23:242:31:038:0626:03
8:23
+0:15
20M
20.00 mi13:34:592:42:388:0811:35
8:31
+0:08
21M
21.00 mi13:44:102:51:498:119:11
9:11
+0:40
35K
21.75 mi13:50:202:57:598:116:10
8:15
-0:56
23M
23.00 mi14:01:103:08:498:1310:50
8:39
+0:24
24M
24.00 mi14:09:523:17:318:148:42
8:42
+0:03
40K
24.85 mi14:17:473:25:268:167:55
9:16
+0:34
25.2M
25.20 mi14:21:103:28:498:173:23
9:49
+0:33
Finish
26.22 mi14:30:213:38:008:199:11
9:01
-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

7:50 /mi

Average Pace

8:19 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:18

48% of race

Time at Steady Pace

1:14:20

34% of race

Time at Slower Pace

38:22

18% 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 mi11:17:3225:118:0625:11
8:06
#14766
10K
6.21 mi11:42:1749:568:0224:45
7:58
#14647
15K
9.32 mi12:07:131:14:528:0224:56
8:02
#14595
20K
12.43 mi12:32:181:39:578:0325:05
8:04
#14411
Half
13.11 mi12:37:391:45:188:025:21
7:50
#14348
25K
15.53 mi12:57:212:05:008:0319:42
8:08
#14253
30K
18.64 mi13:23:242:31:038:0626:03
8:23
#14133
20M
20.00 mi13:34:592:42:388:0811:35
8:31
#14093
21M
21.00 mi13:44:102:51:498:119:11
9:11
#14088
35K
21.75 mi13:50:202:57:598:116:10
8:15
#14042
23M
23.00 mi14:01:103:08:498:1310:50
8:39
#14025
24M
24.00 mi14:09:523:17:318:148:42
8:42
#14101
40K
24.85 mi14:17:473:25:268:167:55
9:16
#14244
25.2M
25.20 mi14:21:103:28:498:173:23
9:49
#14278
Finish
26.22 mi14:30:213:38:008:199:11
9:01
#14433
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi147664497449714606(Top 55%)4449(Top 39%)4449(Top 369%)
10K6.21 mi3.10 mi14647+1194435+624435+6214553(Top 55%)4389(Top 38%)4389(Top 364%)
15K9.32 mi3.11 mi14595+524408+274408+2714606(Top 55%)4449(Top 39%)4449(Top 369%)
20K12.43 mi3.11 mi14411+1844319+894319+8914065(Top 53%)4147(Top 36%)4147(Top 344%)
Half13.11 mi0.68 mi14348+634287+324287+3213201(Top 50%)3635(Top 32%)3635(Top 301%)
25K15.53 mi2.42 mi14253+954259+284259+2813708(Top 51%)4043(Top 35%)4043(Top 335%)
30K18.64 mi3.11 mi14133+1204222+374222+3713609(Top 51%)4099(Top 36%)4099(Top 340%)
20M20.00 mi1.36 mi14093+404225-34225-313791(Top 52%)4290(Top 38%)4290(Top 355%)
21M21.00 mi1.00 mi14088+54244-194244-1914410(Top 54%)4715(Top 41%)4715(Top 391%)
35K21.75 mi0.75 mi14042+464227+174227+1713786(Top 52%)4449(Top 39%)4449(Top 369%)
23M23.00 mi1.25 mi14025+174242-154242-1514098(Top 53%)4673(Top 41%)4673(Top 387%)
24M24.00 mi1.00 mi14101-764310-684310-6815671(Top 59%)5620(Top 49%)5620(Top 466%)
40K24.85 mi0.85 mi14244-1434418-1084418-10817348(Top 65%)6591(Top 58%)6591(Top 546%)
25.2M25.20 mi0.35 mi14278-344455-374455-3716595(Top 62%)6184(Top 54%)6184(Top 512%)
Finish26.22 mi1.02 mi14433-1554561-1064561-10618041(Top 68%)6922(Top 61%)6922(Top 573%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14606

Females

4449

F50-54

4449

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14553

Females

4389

F50-54

4389

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14606

Females

4449

F50-54

4449

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14065

Females

4147

F50-54

4147

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13201

Females

3635

F50-54

3635

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13708

Females

4043

F50-54

4043

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13609

Females

4099

F50-54

4099

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13791

Females

4290

F50-54

4290

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14410

Females

4715

F50-54

4715

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13786

Females

4449

F50-54

4449

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14098

Females

4673

F50-54

4673

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15671

Females

5620

F50-54

5620

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17348

Females

6591

F50-54

6591

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16595

Females

6184

F50-54

6184

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18041

Females

6922

F50-54

6922

Passing Analysis

Category:
Athletes Passed
1833
Passed By
1500
Net Change
+333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14766
5K → 10K346227+119#14766#14647
10K → 15K220168+52#14647#14595
15K → 20K27793+184#14595#14411
20K → Half729+63#14411#14348
Half → 25K18792+95#14348#14253
25K → 30K245125+120#14253#14133
30K → 20M11171+40#14133#14093
20M → 21M9287+5#14093#14088
21M → 35K6620+46#14088#14042
35K → 23M9881+17#14042#14025
23M → 24M40116-76#14025#14101
24M → 40K32175-143#14101#14244
40K → 25.2M1953-34#14244#14278
25.2M → Finish28183-155#14278#14433
TOTALS18331500+333
📊

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