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BOSTON MARATHON 2023

Marina Braun

Bib: 15572•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
46:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:10:47
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:35:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:40:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:00:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:26:32
↑ 181↓ 1480.2%
20M
10:56/mi
2:41:24
↑ 64↓ 500.2%
21M
9:00/mi
2:50:24
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:56:25
↑ 17↓ 861.7%
23M
8:23/mi
3:06:55
↑ 23↓ 630.6%
24M
8:00/mi
3:14:55
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:21:57
↓ 200.3%
25.2M
8:59/mi
3:25:03
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:33:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:34
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:52:29
Pace8:35 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5023:347:3523:34
7:35
-
10K
6.21 mi11:37:1146:557:3323:21
7:31
-0:04
15K
9.32 mi12:01:031:10:477:3623:52
7:41
+0:10
20K
12.43 mi12:25:371:35:217:4024:34
7:54
+0:13
Half
13.11 mi12:30:501:40:347:405:13
7:39
-0:15
25K
15.53 mi12:51:022:00:467:4620:12
8:20
+0:41
30K
18.64 mi13:16:482:26:327:5225:46
8:18
-0:02
20M
20.00 mi13:31:402:41:248:0414:52
10:56
+2:38
21M
21.00 mi13:40:402:50:248:079:00
9:00
-1:56
35K
21.75 mi13:46:412:56:258:076:01
8:03
-0:57
23M
23.00 mi13:57:113:06:558:0810:30
8:23
+0:20
24M
24.00 mi14:05:113:14:558:078:00
8:00
-0:23
40K
24.85 mi14:12:133:21:578:087:02
8:14
+0:14
25.2M
25.20 mi14:15:193:25:038:083:06
8:59
+0:45
Finish
26.22 mi14:23:193:33:038:088:00
7:51
-1:08

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

7:31 /mi

Average Pace

8:08 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:55

22% of race

Time at Steady Pace

2:19:10

65% of race

Time at Slower Pace

26:58

13% of race

Average Pace: 8:08 /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 mi11:13:5023:347:3523:34
7:35
#10421
10K
6.21 mi11:37:1146:557:3323:21
7:31
#10487
15K
9.32 mi12:01:031:10:477:3623:52
7:41
#10892
20K
12.43 mi12:25:371:35:217:4024:34
7:54
#11287
Half
13.11 mi12:30:501:40:347:405:13
7:39
#11291
25K
15.53 mi12:51:022:00:467:4620:12
8:20
#11957
30K
18.64 mi13:16:482:26:327:5225:46
8:18
#12130
20M
20.00 mi13:31:402:41:248:0414:52
10:56
#13591
21M
21.00 mi13:40:402:50:248:079:00
9:00
#13558
35K
21.75 mi13:46:412:56:258:076:01
8:03
#13505
23M
23.00 mi13:57:113:06:558:0810:30
8:23
#13409
24M
24.00 mi14:05:113:14:558:078:00
8:00
#13282
40K
24.85 mi14:12:133:21:578:087:02
8:14
#13202
25.2M
25.20 mi14:15:193:25:038:083:06
8:59
#13155
Finish
26.22 mi14:23:193:33:038:088:00
7:51
#13063
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104212051205111724(Top 44%)2749(Top 24%)2749(Top 56%)
10K6.21 mi3.10 mi10487-662067-162067-1610587(Top 40%)2102(Top 18%)2102(Top 43%)
15K9.32 mi3.11 mi10892-4052276-2092276-20911724(Top 44%)2749(Top 24%)2749(Top 56%)
20K12.43 mi3.11 mi11287-3952493-2172493-21712692(Top 48%)3376(Top 30%)3376(Top 69%)
Half13.11 mi0.68 mi11291-42494-12494-111506(Top 43%)2647(Top 23%)2647(Top 54%)
25K15.53 mi2.42 mi11957-6662914-4202914-42015143(Top 57%)4930(Top 43%)4930(Top 101%)
30K18.64 mi3.11 mi12130-1733049-1353049-13512999(Top 49%)3758(Top 33%)3758(Top 77%)
20M20.00 mi1.36 mi13591-14613916-8673916-86722602(Top 85%)9300(Top 81%)9300(Top 190%)
21M21.00 mi1.00 mi13558+333910+63910+613417(Top 50%)4162(Top 36%)4162(Top 85%)
35K21.75 mi0.75 mi13505+533889+213889+2112457(Top 47%)3676(Top 32%)3676(Top 75%)
23M23.00 mi1.25 mi13409+963858+313858+3112512(Top 47%)3802(Top 33%)3802(Top 78%)
24M24.00 mi1.00 mi13282+1273806+523806+5211270(Top 42%)3232(Top 28%)3232(Top 66%)
40K24.85 mi0.85 mi13202+803781+253781+2511570(Top 43%)3448(Top 30%)3448(Top 71%)
25.2M25.20 mi0.35 mi13155+473772+93772+912516(Top 47%)3975(Top 35%)3975(Top 81%)
Finish26.22 mi1.02 mi13063+923735+373735+3711072(Top 42%)3237(Top 28%)3237(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11724

Females

2749

F18-39

2749

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10587

Females

2102

F18-39

2102

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11724

Females

2749

F18-39

2749

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12692

Females

3376

F18-39

3376

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11506

Females

2647

F18-39

2647

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15143

Females

4930

F18-39

4930

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12999

Females

3758

F18-39

3758

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22602

Females

9300

F18-39

9300

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13417

Females

4162

F18-39

4162

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12457

Females

3676

F18-39

3676

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12512

Females

3802

F18-39

3802

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11270

Females

3232

F18-39

3232

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11570

Females

3448

F18-39

3448

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12516

Females

3975

F18-39

3975

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11072

Females

3237

F18-39

3237

Passing Analysis

Category:
Athletes Passed
1338*
Passed By
3980
Net Change
-2642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10421
5K → 10K256*322-66#10421#10487
10K → 15K71476-405#10487#10892
15K → 20K65460-395#10892#11287
20K → Half2933-4#11287#11291
Half → 25K21687-666#11291#11957
25K → 30K145318-173#11957#12130
30K → 20M61467-1461#12130#13591
20M → 21M10572+33#13591#13558
21M → 35K8431+53#13558#13505
35K → 23M14246+96#13505#13409
23M → 24M14215+127#13409#13282
24M → 40K10020+80#13282#13202
40K → 25.2M5912+47#13202#13155
25.2M → Finish11321+92#13155#13063
TOTALS1338*3980-2642

* 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