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BOSTON MARATHON 2023

Beth Trenor

Bib: 18257•F

SC

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:57
Rank: #16529
Start → 5K
8:21/mi
25:57 split
10K· 6.21 mi
51:36
Rank: #16537 (-8)
5K → 10K
8:15/mi
25:39 split
15K· 9.32 mi
1:17:16
Rank: #16455 (+82)
10K → 15K
8:16/mi
25:40 split
20K· 12.43 mi
1:43:06
Rank: #16254 (+201)
15K → 20K
8:19/mi
25:50 split
Half· 13.11 mi
1:48:43
Rank: #16237 (+17)
20K → Half
8:14/mi
5:37 split
25K· 15.53 mi
2:09:26
Rank: #16270 (-33)
Half → 25K
8:33/mi
20:43 split
30K· 18.64 mi
2:36:45
Rank: #16210 (+60)
25K → 30K
8:48/mi
27:19 split
20M
2:49:06
Rank: #16248 (-38)
30K → 20M
9:05/mi
12:21 split
21M
2:58:40
Rank: #16248
20M → 21M
9:34/mi
9:34 split
35K· 21.75 mi
3:05:18
Rank: #16284 (-36)
21M → 35K
8:52/mi
6:38 split
23M
3:16:37
Rank: #16260 (+24)
35K → 23M
9:02/mi
11:19 split
24M
3:25:29
Rank: #16246 (+14)
23M → 24M
8:52/mi
8:52 split
40K· 24.85 mi
3:33:07
Rank: #16224 (+22)
24M → 40K
8:56/mi
7:38 split
25.2M
3:36:25
Rank: #16213 (+11)
40K → 25.2M
9:34/mi
3:18 split
Finish· 26.22 mi
3:45:01
Rank: #16188 (+25)
25.2M → Finish
8:26/mi
8:36 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:43
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:56:18
Pace8:52 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2325:578:2125:57
8:21
-
10K
6.21 mi11:43:0251:368:1825:39
8:15
-0:06
15K
9.32 mi12:08:421:17:168:1725:40
8:16
+0:01
20K
12.43 mi12:34:321:43:068:1825:50
8:19
+0:03
Half
13.11 mi12:40:091:48:438:185:37
8:14
-0:05
25K
15.53 mi13:00:522:09:268:2020:43
8:33
+0:19
30K
18.64 mi13:28:112:36:458:2527:19
8:48
+0:15
20M
20.00 mi13:40:322:49:068:2712:21
9:05
+0:17
21M
21.00 mi13:50:062:58:408:309:34
9:34
+0:29
35K
21.75 mi13:56:443:05:188:316:38
8:52
-0:42
23M
23.00 mi14:08:033:16:378:3311:19
9:02
+0:10
24M
24.00 mi14:16:553:25:298:348:52
8:52
-0:10
40K
24.85 mi14:24:333:33:078:347:38
8:56
+0:04
25.2M
25.20 mi14:27:513:36:258:353:18
9:34
+0:38
Finish
26.22 mi14:36:273:45:018:358:36
8:26
-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

8:14 /mi

Average Pace

8:35 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:48

89% of race

Time at Steady Pace

25:13

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:35 /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 mi11:17:2325:578:2125:57
8:21
#16529
10K
6.21 mi11:43:0251:368:1825:39
8:15
#16537
15K
9.32 mi12:08:421:17:168:1725:40
8:16
#16455
20K
12.43 mi12:34:321:43:068:1825:50
8:19
#16254
Half
13.11 mi12:40:091:48:438:185:37
8:14
#16237
25K
15.53 mi13:00:522:09:268:2020:43
8:33
#16270
30K
18.64 mi13:28:112:36:458:2527:19
8:48
#16210
20M
20.00 mi13:40:322:49:068:2712:21
9:05
#16248
21M
21.00 mi13:50:062:58:408:309:34
9:34
#16248
35K
21.75 mi13:56:443:05:188:316:38
8:52
#16284
23M
23.00 mi14:08:033:16:378:3311:19
9:02
#16260
24M
24.00 mi14:16:553:25:298:348:52
8:52
#16246
40K
24.85 mi14:24:333:33:078:347:38
8:56
#16224
25.2M
25.20 mi14:27:513:36:258:353:18
9:34
#16213
Finish
26.22 mi14:36:273:45:018:358:36
8:26
#16188
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi165295622562216302(Top 61%)5477(Top 48%)5477(Top 112%)
10K6.21 mi3.10 mi16537-85602+205602+2016629(Top 62%)5655(Top 50%)5655(Top 116%)
15K9.32 mi3.11 mi16455+825561+415561+4116302(Top 61%)5477(Top 48%)5477(Top 112%)
20K12.43 mi3.11 mi16254+2015456+1055456+10515707(Top 59%)5169(Top 45%)5169(Top 106%)
Half13.11 mi0.68 mi16237+175450+65450+616089(Top 60%)5357(Top 47%)5357(Top 110%)
25K15.53 mi2.42 mi16270-335497-475497-4716470(Top 62%)5703(Top 50%)5703(Top 117%)
30K18.64 mi3.11 mi16210+605505-85505-816015(Top 60%)5508(Top 48%)5508(Top 113%)
20M20.00 mi1.36 mi16248-385548-435548-4316998(Top 64%)6158(Top 54%)6158(Top 126%)
21M21.00 mi1.00 mi162485568-205568-2016288(Top 61%)5790(Top 51%)5790(Top 119%)
35K21.75 mi0.75 mi16284-365593-255593-2517290(Top 65%)6430(Top 56%)6430(Top 132%)
23M23.00 mi1.25 mi16260+245588+55588+516258(Top 61%)5885(Top 52%)5885(Top 120%)
24M24.00 mi1.00 mi16246+145604-165604-1616605(Top 62%)6135(Top 54%)6135(Top 126%)
40K24.85 mi0.85 mi16224+225608-45608-415786(Top 59%)5730(Top 50%)5730(Top 117%)
25.2M25.20 mi0.35 mi16213+115604+45604+415561(Top 58%)5622(Top 49%)5622(Top 115%)
Finish26.22 mi1.02 mi16188+255603+15603+115041(Top 56%)5276(Top 46%)5276(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16302

Females

5477

F18-39

5477

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16629

Females

5655

F18-39

5655

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16302

Females

5477

F18-39

5477

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15707

Females

5169

F18-39

5169

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16089

Females

5357

F18-39

5357

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16470

Females

5703

F18-39

5703

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16015

Females

5508

F18-39

5508

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

16998

Females

6158

F18-39

6158

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

16288

Females

5790

F18-39

5790

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17290

Females

6430

F18-39

6430

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16258

Females

5885

F18-39

5885

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16605

Females

6135

F18-39

6135

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15786

Females

5730

F18-39

5730

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15561

Females

5622

F18-39

5622

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15041

Females

5276

F18-39

5276

Passing Analysis

Category:
Athletes Passed
1741
Passed By
1400
Net Change
+341
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16529
5K → 10K301309-8#16529#16537
10K → 15K237155+82#16537#16455
15K → 20K27574+201#16455#16254
20K → Half4326+17#16254#16237
Half → 25K131164-33#16237#16270
25K → 30K214154+60#16270#16210
30K → 20M66104-38#16210#16248
20M → 21M81810#16248#16248
21M → 35K3874-36#16248#16284
35K → 23M9268+24#16284#16260
23M → 24M8268+14#16260#16246
24M → 40K7250+22#16246#16224
40K → 25.2M3221+11#16224#16213
25.2M → Finish7752+25#16213#16188
TOTALS17411400+341
📊

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