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BOSTON MARATHON 2023

Mariana Maruri Cortes

Bib: 12163•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
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
7:43/mi
24:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:10:27
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:33:50
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:39:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:57:16
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:21:35
↑ 181↓ 1480.2%
20M
7:52/mi
2:32:16
↑ 64↓ 500.2%
21M
8:18/mi
2:40:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:46:11
↑ 17↓ 861.7%
23M
7:53/mi
2:56:03
↑ 23↓ 630.6%
24M
7:34/mi
3:03:37
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:10:12
↓ 200.3%
25.2M
8:22/mi
3:13:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:38/mi
3:20:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:01
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2824:007:4324:00
7:43
-
10K
6.21 mi11:14:4047:127:3623:12
7:28
-0:15
15K
9.32 mi11:37:551:10:277:3423:15
7:29
+0:01
20K
12.43 mi12:01:181:33:507:3323:23
7:32
+0:03
Half
13.11 mi12:06:291:39:017:335:11
7:36
+0:04
25K
15.53 mi12:24:441:57:167:3318:15
7:32
-0:04
30K
18.64 mi12:49:032:21:357:3624:19
7:50
+0:18
20M
20.00 mi12:59:442:32:167:3710:41
7:52
+0:02
21M
21.00 mi13:08:022:40:347:398:18
8:18
+0:26
35K
21.75 mi13:13:392:46:117:385:37
7:30
-0:48
23M
23.00 mi13:23:312:56:037:399:52
7:53
+0:23
24M
24.00 mi13:31:053:03:377:397:34
7:34
-0:19
40K
24.85 mi13:37:403:10:127:396:35
7:42
+0:08
25.2M
25.20 mi13:40:333:13:057:402:53
8:22
+0:40
Finish
26.22 mi13:48:203:20:527:407:47
7:38
-0:44

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

7:28 /mi

Average Pace

7:40 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:41

94% of race

Time at Steady Pace

11:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:51:2824:007:4324:00
7:43
#11683
10K
6.21 mi11:14:4047:127:3623:12
7:28
#10886
15K
9.32 mi11:37:551:10:277:3423:15
7:29
#10577
20K
12.43 mi12:01:181:33:507:3323:23
7:32
#10279
Half
13.11 mi12:06:291:39:017:335:11
7:36
#10313
25K
15.53 mi12:24:441:57:167:3318:15
7:32
#10038
30K
18.64 mi12:49:032:21:357:3624:19
7:50
#9934
20M
20.00 mi12:59:442:32:167:3710:41
7:52
#9837
21M
21.00 mi13:08:022:40:347:398:18
8:18
#9779
35K
21.75 mi13:13:392:46:117:385:37
7:30
#9723
23M
23.00 mi13:23:312:56:037:399:52
7:53
#9643
24M
24.00 mi13:31:053:03:377:397:34
7:34
#9560
40K
24.85 mi13:37:403:10:127:396:35
7:42
#9461
25.2M
25.20 mi13:40:333:13:057:402:53
8:22
#9423
Finish
26.22 mi13:48:203:20:527:407:47
7:38
#9420
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116832681268110053(Top 38%)1866(Top 16%)1866(Top 38%)
10K6.21 mi3.10 mi10886+7972266+4152266+41510211(Top 38%)1914(Top 17%)1914(Top 39%)
15K9.32 mi3.11 mi10577+3092108+1582108+15810053(Top 38%)1866(Top 16%)1866(Top 38%)
20K12.43 mi3.11 mi10279+2981965+1431965+1439524(Top 36%)1698(Top 15%)1698(Top 35%)
Half13.11 mi0.68 mi10313-341982-171982-1711015(Top 41%)2357(Top 21%)2357(Top 48%)
25K15.53 mi2.42 mi10038+2751879+1031879+1038994(Top 34%)1554(Top 14%)1554(Top 32%)
30K18.64 mi3.11 mi9934+1041864+151864+159576(Top 36%)1954(Top 17%)1954(Top 40%)
20M20.00 mi1.36 mi9837+971845+191845+199325(Top 35%)1944(Top 17%)1944(Top 40%)
21M21.00 mi1.00 mi9779+581843+21843+29248(Top 35%)2025(Top 18%)2025(Top 41%)
35K21.75 mi0.75 mi9723+561837+61837+68619(Top 32%)1738(Top 15%)1738(Top 36%)
23M23.00 mi1.25 mi9643+80183718378960(Top 34%)2004(Top 18%)2004(Top 41%)
24M24.00 mi1.00 mi9560+831823+141823+148194(Top 31%)1759(Top 15%)1759(Top 36%)
40K24.85 mi0.85 mi9461+991816+71816+78009(Top 30%)1747(Top 15%)1747(Top 36%)
25.2M25.20 mi0.35 mi9423+381810+61810+68717(Top 33%)2120(Top 19%)2120(Top 43%)
Finish26.22 mi1.02 mi9420+31826-161826-169563(Top 36%)2493(Top 22%)2493(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10053

Females

1866

F18-39

1866

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10211

Females

1914

F18-39

1914

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10053

Females

1866

F18-39

1866

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9524

Females

1698

F18-39

1698

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11015

Females

2357

F18-39

2357

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

8994

Females

1554

F18-39

1554

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9576

Females

1954

F18-39

1954

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9325

Females

1944

F18-39

1944

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9248

Females

2025

F18-39

2025

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8619

Females

1738

F18-39

1738

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8960

Females

2004

F18-39

2004

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8194

Females

1759

F18-39

1759

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8009

Females

1747

F18-39

1747

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8717

Females

2120

F18-39

2120

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9563

Females

2493

F18-39

2493

Passing Analysis

Category:
Athletes Passed
2852*
Passed By
589
Net Change
+2263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11683
5K → 10K86467+797#11683#10886
10K → 15K37667+309#10886#10577
15K → 20K324*26+298#10577#10279
20K → Half1549-34#10279#10313
Half → 25K29722+275#10313#10038
25K → 30K209*105+104#10038#9934
30K → 20M13336+97#9934#9837
20M → 21M10850+58#9837#9779
21M → 35K7115+56#9779#9723
35K → 23M13252+80#9723#9643
23M → 24M10320+83#9643#9560
24M → 40K113*14+99#9560#9461
40K → 25.2M5113+38#9461#9423
25.2M → Finish5653+3#9423#9420
TOTALS2852*589+2263

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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