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BOSTON MARATHON 2023

Malaika Johnston

Bib: 31888•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
11:15/mi
34:56
↑ 97↓ 3451.5%
10K· 6.21 mi
11:16/mi
1:09:57
↑ 79↓ 1380.4%
15K· 9.32 mi
12:25/mi
1:48:32
↑ 67↓ 78
20K· 12.43 mi
12:43/mi
2:28:01
↑ 106↓ 860.1%
Half· 13.11 mi
12:26/mi
2:36:30
↑ 19↓ 370.5%
25K· 15.53 mi
13:16/mi
3:08:40
↑ 66↓ 880.2%
30K· 18.64 mi
13:22/mi
3:50:12
↑ 181↓ 1480.2%
20M
14:01/mi
4:09:15
↑ 64↓ 500.2%
21M
14:25/mi
4:23:40
↑ 106↓ 241.6%
35K· 21.75 mi
14:53/mi
4:34:48
↑ 17↓ 861.7%
23M
12:44/mi
4:50:44
↑ 23↓ 630.6%
24M
12:13/mi
5:02:57
↓ 821.3%
40K· 24.85 mi
12:54/mi
5:13:59
↓ 200.3%
25.2M
15:05/mi
5:19:11
↑ 13↓ 160.2%
Finish· 26.22 mi
12:10/mi
5:31:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:30
Pace11:56 /mi
2nd Half
Distance13.11 mi
Time2:55:05
Pace13:21 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:2634:5611:1534:56
11:15
-
10K
6.21 mi12:32:271:09:5711:1535:01
11:16
+0:01
15K
9.32 mi13:11:021:48:3211:3938:35
12:25
+1:09
20K
12.43 mi13:50:312:28:0111:5539:29
12:43
+0:18
Half
13.11 mi13:59:002:36:3011:568:29
12:26
-0:17
25K
15.53 mi14:31:103:08:4012:0932:10
13:16
+0:50
30K
18.64 mi15:12:423:50:1212:2141:32
13:22
+0:06
20M
20.00 mi15:31:454:09:1512:2819:03
14:01
+0:39
21M
21.00 mi15:46:104:23:4012:3314:25
14:25
+0:24
35K
21.75 mi15:57:184:34:4812:3811:08
14:53
+0:28
23M
23.00 mi16:13:144:50:4412:3815:56
12:44
-2:09
24M
24.00 mi16:25:275:02:5712:3712:13
12:13
-0:31
40K
24.85 mi16:36:295:13:5912:3811:02
12:54
+0:41
25.2M
25.20 mi16:41:415:19:1112:405:12
15:05
+2:11
Finish
26.22 mi16:54:055:31:3512:3912:24
12:10
-2:55

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

11:15 /mi

Average Pace

12:39 /mi

Slowest Pace

15:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:57

21% of race

Time at Steady Pace

2:50:18

51% of race

Time at Slower Pace

1:31:20

28% of race

Average Pace: 12:39 /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 mi11:57:2634:5611:1534:56
11:15
#25976
10K
6.21 mi12:32:271:09:5711:1535:01
11:16
#25873
15K
9.32 mi13:11:021:48:3211:3938:35
12:25
#26082
20K
12.43 mi13:50:312:28:0111:5539:29
12:43
#26100
Half
13.11 mi13:59:002:36:3011:568:29
12:26
#26108
25K
15.53 mi14:31:103:08:4012:0932:10
13:16
#26108
30K
18.64 mi15:12:423:50:1212:2141:32
13:22
#26049
20M
20.00 mi15:31:454:09:1512:2819:03
14:01
#26033
21M
21.00 mi15:46:104:23:4012:3314:25
14:25
#26014
35K
21.75 mi15:57:184:34:4812:3811:08
14:53
#26039
23M
23.00 mi16:13:144:50:4412:3815:56
12:44
#25994
24M
24.00 mi16:25:275:02:5712:3712:13
12:13
#25964
40K
24.85 mi16:36:295:13:5912:3811:02
12:54
#25942
25.2M
25.20 mi16:41:415:19:1112:405:12
15:05
#25943
Finish
26.22 mi16:54:055:31:3512:3912:24
12:10
#25939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25976110351103526283(Top 99%)11225(Top 98%)11225(Top 618%)
10K6.21 mi3.10 mi25873+10310965+7010965+7025761(Top 97%)10889(Top 95%)10889(Top 599%)
15K9.32 mi3.11 mi26082-20911089-12411089-12426283(Top 99%)11225(Top 98%)11225(Top 618%)
20K12.43 mi3.11 mi26100-1811107-1811107-1826086(Top 98%)11104(Top 97%)11104(Top 611%)
Half13.11 mi0.68 mi26108-811109-211109-226119(Top 98%)11130(Top 97%)11130(Top 613%)
25K15.53 mi2.42 mi2610811110-111110-126006(Top 98%)11083(Top 97%)11083(Top 610%)
30K18.64 mi3.11 mi26049+5911085+2511085+2525684(Top 96%)10938(Top 96%)10938(Top 602%)
20M20.00 mi1.36 mi26033+1611077+811077+825834(Top 97%)11035(Top 97%)11035(Top 607%)
21M21.00 mi1.00 mi26014+1911066+1111066+1125370(Top 95%)10795(Top 95%)10795(Top 594%)
35K21.75 mi0.75 mi26039-2511086-2011086-2026390(Top 99%)11325(Top 99%)11325(Top 623%)
23M23.00 mi1.25 mi25994+4511060+2611060+2624832(Top 93%)10550(Top 92%)10550(Top 581%)
24M24.00 mi1.00 mi25964+3011045+1511045+1524775(Top 93%)10575(Top 93%)10575(Top 582%)
40K24.85 mi0.85 mi25942+2211033+1211033+1224869(Top 93%)10610(Top 93%)10610(Top 584%)
25.2M25.20 mi0.35 mi25943-111034-111034-125754(Top 97%)11054(Top 97%)11054(Top 608%)
Finish26.22 mi1.02 mi25939+411036-211036-225401(Top 95%)10872(Top 95%)10872(Top 598%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26283

Females

11225

F45-49

11225

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25761

Females

10889

F45-49

10889

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26283

Females

11225

F45-49

11225

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26086

Females

11104

F45-49

11104

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26119

Females

11130

F45-49

11130

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26006

Females

11083

F45-49

11083

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25684

Females

10938

F45-49

10938

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25834

Females

11035

F45-49

11035

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

25370

Females

10795

F45-49

10795

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26390

Females

11325

F45-49

11325

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24832

Females

10550

F45-49

10550

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24775

Females

10575

F45-49

10575

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24869

Females

10610

F45-49

10610

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25754

Females

11054

F45-49

11054

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25401

Females

10872

F45-49

10872

Passing Analysis

Category:
Athletes Passed
523
Passed By
486
Net Change
+37
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25976
5K → 10K17067+103#25976#25873
10K → 15K14223-209#25873#26082
15K → 20K4159-18#26082#26100
20K → Half311-8#26100#26108
Half → 25K39390#26108#26108
25K → 30K7516+59#26108#26049
30K → 20M2812+16#26049#26033
20M → 21M267+19#26033#26014
21M → 35K429-25#26014#26039
35K → 23M461+45#26039#25994
23M → 24M333+30#25994#25964
24M → 40K286+22#25964#25942
40K → 25.2M34-1#25942#25943
25.2M → Finish139+4#25943#25939
TOTALS523486+37
📊

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