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BOSTON MARATHON 2023

Mariah Burroughs

Bib: 11509•F

AK

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 20%
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
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
46:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:27
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:32:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:37:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:56:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:19:50
↑ 181↓ 1480.2%
20M
7:38/mi
2:30:13
↑ 64↓ 500.2%
21M
7:58/mi
2:38:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:43:34
↑ 17↓ 861.7%
23M
7:26/mi
2:52:52
↑ 23↓ 630.6%
24M
7:06/mi
2:59:58
↓ 821.3%
40K· 24.85 mi
7:15/mi
3:06:10
↓ 200.3%
25.2M
7:44/mi
3:08:50
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:15:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:37:44
Pace7:27 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0223:197:3023:19
7:30
-
10K
6.21 mi11:13:0246:197:2723:00
7:24
-0:06
15K
9.32 mi11:36:101:09:277:2723:08
7:27
+0:03
20K
12.43 mi11:59:211:32:387:2723:11
7:28
+0:01
Half
13.11 mi12:04:271:37:447:275:06
7:29
+0:01
25K
15.53 mi12:22:451:56:027:2818:18
7:33
+0:04
30K
18.64 mi12:46:332:19:507:3023:48
7:40
+0:07
20M
20.00 mi12:56:562:30:137:3110:23
7:38
-0:02
21M
21.00 mi13:04:542:38:117:327:58
7:58
+0:20
35K
21.75 mi13:10:172:43:347:315:23
7:12
-0:46
23M
23.00 mi13:19:352:52:527:319:18
7:26
+0:14
24M
24.00 mi13:26:412:59:587:307:06
7:06
-0:20
40K
24.85 mi13:32:533:06:107:296:12
7:15
+0:09
25.2M
25.20 mi13:35:333:08:507:302:40
7:44
+0:29
Finish
26.22 mi13:42:353:15:527:297:02
6:54
-0:50

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

6:54 /mi

Average Pace

7:29 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:03

77% of race

Time at Steady Pace

44:49

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:50:0223:197:3023:19
7:30
#9679
10K
6.21 mi11:13:0246:197:2723:00
7:24
#9610
15K
9.32 mi11:36:101:09:277:2723:08
7:27
#9625
20K
12.43 mi11:59:211:32:387:2723:11
7:28
#9442
Half
13.11 mi12:04:271:37:447:275:06
7:29
#9468
25K
15.53 mi12:22:451:56:027:2818:18
7:33
#9392
30K
18.64 mi12:46:332:19:507:3023:48
7:40
#9171
20M
20.00 mi12:56:562:30:137:3110:23
7:38
#9031
21M
21.00 mi13:04:542:38:117:327:58
7:58
#8908
35K
21.75 mi13:10:172:43:347:315:23
7:12
#8801
23M
23.00 mi13:19:352:52:527:319:18
7:26
#8586
24M
24.00 mi13:26:412:59:587:307:06
7:06
#8389
40K
24.85 mi13:32:533:06:107:296:12
7:15
#8240
25.2M
25.20 mi13:35:333:08:507:302:40
7:44
#8172
Finish
26.22 mi13:42:353:15:527:297:02
6:54
#7974
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9679169116919737(Top 37%)1718(Top 15%)1718(Top 35%)
10K6.21 mi3.10 mi9610+691661+301661+309663(Top 36%)1681(Top 15%)1681(Top 34%)
15K9.32 mi3.11 mi9625-151671-101671-109737(Top 37%)1718(Top 15%)1718(Top 35%)
20K12.43 mi3.11 mi9442+1831608+631608+639015(Top 34%)1489(Top 13%)1489(Top 30%)
Half13.11 mi0.68 mi9468-261618-101618-1010045(Top 38%)1881(Top 16%)1881(Top 39%)
25K15.53 mi2.42 mi9392+761606+121606+129140(Top 34%)1605(Top 14%)1605(Top 33%)
30K18.64 mi3.11 mi9171+2211552+541552+548374(Top 31%)1454(Top 13%)1454(Top 30%)
20M20.00 mi1.36 mi9031+1401518+341518+347775(Top 29%)1311(Top 11%)1311(Top 27%)
21M21.00 mi1.00 mi8908+1231487+311487+317167(Top 27%)1192(Top 10%)1192(Top 24%)
35K21.75 mi0.75 mi8801+1071455+321455+326550(Top 25%)943(Top 8%)943(Top 19%)
23M23.00 mi1.25 mi8586+2151403+521403+526053(Top 23%)836(Top 7%)836(Top 17%)
24M24.00 mi1.00 mi8389+1971348+551348+555236(Top 20%)645(Top 6%)645(Top 13%)
40K24.85 mi0.85 mi8240+1491315+331315+335194(Top 20%)719(Top 6%)719(Top 15%)
25.2M25.20 mi0.35 mi8172+681298+171298+175139(Top 19%)784(Top 7%)784(Top 16%)
Finish26.22 mi1.02 mi7974+1981244+541244+544683(Top 18%)635(Top 6%)635(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9737

Females

1718

F18-39

1718

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9663

Females

1681

F18-39

1681

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9737

Females

1718

F18-39

1718

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9015

Females

1489

F18-39

1489

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10045

Females

1881

F18-39

1881

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9140

Females

1605

F18-39

1605

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8374

Females

1454

F18-39

1454

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7775

Females

1311

F18-39

1311

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7167

Females

1192

F18-39

1192

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6550

Females

943

F18-39

943

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6053

Females

836

F18-39

836

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5236

Females

645

F18-39

645

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5194

Females

719

F18-39

719

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5139

Females

784

F18-39

784

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4683

Females

635

F18-39

635

Passing Analysis

Category:
Athletes Passed
2427*
Passed By
722
Net Change
+1705
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9679
5K → 10K330261+69#9679#9610
10K → 15K162177-15#9610#9625
15K → 20K23451+183#9625#9442
20K → Half1440-26#9442#9468
Half → 25K15680+76#9468#9392
25K → 30K280*59+221#9392#9171
30K → 20M15818+140#9171#9031
20M → 21M14017+123#9031#8908
21M → 35K1125+107#8908#8801
35K → 23M2194+215#8801#8586
23M → 24M2014+197#8586#8389
24M → 40K1523+149#8389#8240
40K → 25.2M680+68#8240#8172
25.2M → Finish2013+198#8172#7974
TOTALS2427*722+1705

* 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