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BOSTON MARATHON 2023

Elaine Johnson

Bib: 15294•F

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Division (F18-39)
#0 / 4884
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
8:27/mi
26:15
↑ 97↓ 3451.5%
10K· 6.21 mi
8:20/mi
52:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:32/mi
1:18:39
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:44:29
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:50:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:10:35
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:36:09
↑ 181↓ 1480.2%
20M
8:23/mi
2:47:33
↑ 64↓ 500.2%
21M
8:23/mi
2:55:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
3:02:04
↑ 17↓ 861.7%
23M
8:24/mi
3:12:35
↑ 23↓ 630.6%
24M
8:15/mi
3:20:50
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:27:56
↓ 200.3%
25.2M
8:27/mi
3:30:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:40/mi
3:38:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:09
Pace8:24 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:31
Pace8:17 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:1526:158:2726:15
8:27
-
10K
6.21 mi11:23:0952:098:2425:54
8:20
-0:07
15K
9.32 mi11:49:391:18:398:2626:30
8:32
+0:12
20K
12.43 mi12:15:291:44:298:2425:50
8:19
-0:13
Half
13.11 mi12:21:091:50:098:245:40
8:18
-0:01
25K
15.53 mi12:41:352:10:358:2420:26
8:26
+0:08
30K
18.64 mi13:07:092:36:098:2325:34
8:14
-0:12
20M
20.00 mi13:18:332:47:338:2311:24
8:23
+0:09
21M
21.00 mi13:26:562:55:568:238:23
8:23
0:00
35K
21.75 mi13:33:043:02:048:226:08
8:12
-0:11
23M
23.00 mi13:43:353:12:358:2210:31
8:24
+0:12
24M
24.00 mi13:51:503:20:508:228:15
8:15
-0:09
40K
24.85 mi13:58:563:27:568:227:06
8:18
+0:03
25.2M
25.20 mi14:01:513:30:518:222:55
8:27
+0:09
Finish
26.22 mi14:09:403:38:408:217:49
7:40
-0:47

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

7:40 /mi

Average Pace

8:21 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:34

65% of race

Time at Steady Pace

1:16:06

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi10:57:1526:158:2726:15
8:27
#17211
10K
6.21 mi11:23:0952:098:2425:54
8:20
#17165
15K
9.32 mi11:49:391:18:398:2626:30
8:32
#17448
20K
12.43 mi12:15:291:44:298:2425:50
8:19
#16992
Half
13.11 mi12:21:091:50:098:245:40
8:18
#16963
25K
15.53 mi12:41:352:10:358:2420:26
8:26
#16776
30K
18.64 mi13:07:092:36:098:2325:34
8:14
#15990
20M
20.00 mi13:18:332:47:338:2311:24
8:23
#15722
21M
21.00 mi13:26:562:55:568:238:23
8:23
#15378
35K
21.75 mi13:33:043:02:048:226:08
8:12
#15280
23M
23.00 mi13:43:353:12:358:2210:31
8:24
#15107
24M
24.00 mi13:51:503:20:508:228:15
8:15
#15024
40K
24.85 mi13:58:563:27:568:227:06
8:18
#14890
25.2M
25.20 mi14:01:513:30:518:222:55
8:27
#14782
Finish
26.22 mi14:09:403:38:408:217:49
7:40
#14602
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi172116070607018006(Top 68%)6494(Top 57%)6494(Top 133%)
10K6.21 mi3.10 mi17165+466029+416029+4117163(Top 64%)5971(Top 52%)5971(Top 122%)
15K9.32 mi3.11 mi17448-2836187-1586187-15818006(Top 68%)6494(Top 57%)6494(Top 133%)
20K12.43 mi3.11 mi16992+4565921+2665921+26615695(Top 59%)5157(Top 45%)5157(Top 106%)
Half13.11 mi0.68 mi16963+295905+165905+1616512(Top 62%)5595(Top 49%)5595(Top 115%)
25K15.53 mi2.42 mi16776+1875817+885817+8815756(Top 59%)5286(Top 46%)5286(Top 108%)
30K18.64 mi3.11 mi15990+7865367+4505367+45012551(Top 47%)3497(Top 31%)3497(Top 72%)
20M20.00 mi1.36 mi15722+2685223+1445223+14412909(Top 48%)3815(Top 33%)3815(Top 78%)
21M21.00 mi1.00 mi15378+3445044+1795044+1799788(Top 37%)2296(Top 20%)2296(Top 47%)
35K21.75 mi0.75 mi15280+984993+514993+5113477(Top 51%)4276(Top 37%)4276(Top 88%)
23M23.00 mi1.25 mi15107+1734906+874906+8712610(Top 47%)3861(Top 34%)3861(Top 79%)
24M24.00 mi1.00 mi15024+834872+344872+3412976(Top 49%)4128(Top 36%)4128(Top 85%)
40K24.85 mi0.85 mi14890+1344815+574815+5712128(Top 46%)3753(Top 33%)3753(Top 77%)
25.2M25.20 mi0.35 mi14782+1084762+534762+539390(Top 35%)2449(Top 21%)2449(Top 50%)
Finish26.22 mi1.02 mi14602+1804663+994663+999827(Top 37%)2632(Top 23%)2632(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18006

Females

6494

F18-39

6494

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17163

Females

5971

F18-39

5971

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18006

Females

6494

F18-39

6494

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15695

Females

5157

F18-39

5157

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16512

Females

5595

F18-39

5595

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15756

Females

5286

F18-39

5286

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12551

Females

3497

F18-39

3497

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12909

Females

3815

F18-39

3815

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9788

Females

2296

F18-39

2296

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13477

Females

4276

F18-39

4276

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12610

Females

3861

F18-39

3861

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12976

Females

4128

F18-39

4128

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12128

Females

3753

F18-39

3753

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9390

Females

2449

F18-39

2449

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9827

Females

2632

F18-39

2632

Passing Analysis

Category:
Athletes Passed
3409
Passed By
800
Net Change
+2609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17211
5K → 10K340294+46#17211#17165
10K → 15K96379-283#17165#17448
15K → 20K47923+456#17448#16992
20K → Half4516+29#16992#16963
Half → 25K21730+187#16963#16776
25K → 30K7882+786#16776#15990
30K → 20M2757+268#15990#15722
20M → 21M3440+344#15722#15378
21M → 35K1057+98#15378#15280
35K → 23M18310+173#15280#15107
23M → 24M10421+83#15107#15024
24M → 40K1384+134#15024#14890
40K → 25.2M1091+108#14890#14782
25.2M → Finish1866+180#14782#14602
TOTALS3409800+2609
📊

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