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BOSTON MARATHON 2023

Marjo Demarteau

Bib: 15559•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 18%
Division (F50-54)
#0 / 1207
Top 11%
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
7:54/mi
24:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:13:52
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:03:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:29:01
↑ 181↓ 1480.2%
20M
8:18/mi
2:40:18
↑ 64↓ 500.2%
21M
8:58/mi
2:49:16
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:55:12
↑ 17↓ 861.7%
23M
8:26/mi
3:05:45
↑ 23↓ 630.6%
24M
8:08/mi
3:13:53
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:20:59
↓ 200.3%
25.2M
8:51/mi
3:24:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:32:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:00
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:48:20
Pace8:16 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4024:347:5424:34
7:54
-
10K
6.21 mi11:19:1249:067:5424:32
7:54
0:00
15K
9.32 mi11:43:581:13:527:5624:46
7:58
+0:04
20K
12.43 mi12:08:421:38:367:5624:44
7:58
0:00
Half
13.11 mi12:14:061:44:007:565:24
7:55
-0:03
25K
15.53 mi12:33:342:03:287:5719:28
8:02
+0:07
30K
18.64 mi12:59:072:29:018:0025:33
8:13
+0:11
20M
20.00 mi13:10:242:40:188:0111:17
8:18
+0:05
21M
21.00 mi13:19:222:49:168:048:58
8:58
+0:40
35K
21.75 mi13:25:182:55:128:035:56
7:56
-1:02
23M
23.00 mi13:35:513:05:458:0510:33
8:26
+0:30
24M
24.00 mi13:43:593:13:538:058:08
8:08
-0:18
40K
24.85 mi13:51:053:20:598:057:06
8:18
+0:10
25.2M
25.20 mi13:54:083:24:028:063:03
8:51
+0:33
Finish
26.22 mi14:02:263:32:208:068:18
8:09
-0:42

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

7:54 /mi

Average Pace

8:06 /mi

Slowest Pace

8:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:19

94% of race

Time at Steady Pace

12:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi10:54:4024:347:5424:34
7:54
#13329
10K
6.21 mi11:19:1249:067:5424:32
7:54
#13625
15K
9.32 mi11:43:581:13:527:5624:46
7:58
#13781
20K
12.43 mi12:08:421:38:367:5624:44
7:58
#13585
Half
13.11 mi12:14:061:44:007:565:24
7:55
#13583
25K
15.53 mi12:33:342:03:287:5719:28
8:02
#13456
30K
18.64 mi12:59:072:29:018:0025:33
8:13
#13255
20M
20.00 mi13:10:242:40:188:0111:17
8:18
#13171
21M
21.00 mi13:19:222:49:168:048:58
8:58
#13133
35K
21.75 mi13:25:182:55:128:035:56
7:56
#13063
23M
23.00 mi13:35:513:05:458:0510:33
8:26
#13016
24M
24.00 mi13:43:593:13:538:058:08
8:08
#12969
40K
24.85 mi13:51:053:20:598:057:06
8:18
#12926
25.2M
25.20 mi13:54:083:24:028:063:03
8:51
#12899
Finish
26.22 mi14:02:263:32:208:068:18
8:09
#12887
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi133293632363214176(Top 53%)4193(Top 37%)4193(Top 347%)
10K6.21 mi3.10 mi13625-2963823-1913823-19113984(Top 53%)4040(Top 35%)4040(Top 335%)
15K9.32 mi3.11 mi13781-1563931-1083931-10814176(Top 53%)4193(Top 37%)4193(Top 347%)
20K12.43 mi3.11 mi13585+1963836+953836+9513127(Top 49%)3619(Top 32%)3619(Top 300%)
Half13.11 mi0.68 mi13583+23831+53831+513800(Top 52%)3985(Top 35%)3985(Top 330%)
25K15.53 mi2.42 mi13456+1273779+523779+5213000(Top 49%)3633(Top 32%)3633(Top 301%)
30K18.64 mi3.11 mi13255+2013701+783701+7812522(Top 47%)3483(Top 30%)3483(Top 289%)
20M20.00 mi1.36 mi13171+843666+353666+3512423(Top 47%)3541(Top 31%)3541(Top 293%)
21M21.00 mi1.00 mi13133+383656+103656+1013265(Top 50%)4099(Top 36%)4099(Top 340%)
35K21.75 mi0.75 mi13063+703635+213635+2111704(Top 44%)3282(Top 29%)3282(Top 272%)
23M23.00 mi1.25 mi13016+473635363512796(Top 48%)3974(Top 35%)3974(Top 329%)
24M24.00 mi1.00 mi12969+473631+43631+412199(Top 46%)3710(Top 32%)3710(Top 307%)
40K24.85 mi0.85 mi12926+433630+13630+112151(Top 46%)3773(Top 33%)3773(Top 313%)
25.2M25.20 mi0.35 mi12899+273622+83622+811747(Top 44%)3641(Top 32%)3641(Top 302%)
Finish26.22 mi1.02 mi12887+123635-133635-1313121(Top 49%)4289(Top 38%)4289(Top 355%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14176

Females

4193

F50-54

4193

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13984

Females

4040

F50-54

4040

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14176

Females

4193

F50-54

4193

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13127

Females

3619

F50-54

3619

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13800

Females

3985

F50-54

3985

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13000

Females

3633

F50-54

3633

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12522

Females

3483

F50-54

3483

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12423

Females

3541

F50-54

3541

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13265

Females

4099

F50-54

4099

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11704

Females

3282

F50-54

3282

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12796

Females

3974

F50-54

3974

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12199

Females

3710

F50-54

3710

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12151

Females

3773

F50-54

3773

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11747

Females

3641

F50-54

3641

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13121

Females

4289

F50-54

4289

Passing Analysis

Category:
Athletes Passed
1825
Passed By
1383
Net Change
+442
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13329
5K → 10K182478-296#13329#13625
10K → 15K123279-156#13625#13781
15K → 20K27074+196#13781#13585
20K → Half3735+2#13585#13583
Half → 25K19265+127#13583#13456
25K → 30K29089+201#13456#13255
30K → 20M13147+84#13255#13171
20M → 21M10870+38#13171#13133
21M → 35K9323+70#13133#13063
35K → 23M11871+47#13063#13016
23M → 24M8841+47#13016#12969
24M → 40K8441+43#12969#12926
40K → 25.2M4215+27#12926#12899
25.2M → Finish6755+12#12899#12887
TOTALS18251383+442
📊

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