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BOSTON MARATHON 2024

Brynn Townsend

Bib: 17174•F

UT

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 41%
Gender (Female)
#0 / 10924
Top 27%
Division (F18-39)
#0 / 4660
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #14010
Start → 5K
7:55/mi
24:36 split
10K· 6.21 mi
48:54
Rank: #13382 (+628)
5K → 10K
7:49/mi
24:18 split
15K· 9.32 mi
1:13:24
Rank: #13108 (+274)
10K → 15K
7:53/mi
24:30 split
20K· 12.43 mi
1:37:55
Rank: #12496 (+612)
15K → 20K
7:53/mi
24:31 split
Half· 13.11 mi
1:43:15
Rank: #12424 (+72)
20K → Half
7:49/mi
5:20 split
25K· 15.53 mi
2:02:25
Rank: #11827 (+597)
Half → 25K
7:54/mi
19:10 split
30K· 18.64 mi
2:28:30
Rank: #11420 (+407)
25K → 30K
8:24/mi
26:05 split
20M
2:39:25
Rank: #10967 (+453)
30K → 20M
8:02/mi
10:55 split
21M
2:48:18
Rank: #10702 (+265)
20M → 21M
8:53/mi
8:53 split
35K· 21.75 mi
2:54:24
Rank: #10594 (+108)
21M → 35K
8:09/mi
6:06 split
23M
3:05:18
Rank: #10480 (+114)
35K → 23M
8:42/mi
10:54 split
24M
3:13:59
Rank: #10446 (+34)
23M → 24M
8:41/mi
8:41 split
40K· 24.85 mi
3:22:00
Rank: #10537 (-91)
24M → 40K
9:23/mi
8:01 split
25.2M
3:25:47
Rank: #10617 (-80)
40K → 25.2M
10:58/mi
3:47 split
Finish· 26.22 mi
3:33:44
Rank: #10454 (+163)
25.2M → Finish
7:48/mi
7:57 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:15
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:50:29
Pace8:26 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4524:367:5524:36
7:55
-
10K
6.21 mi11:41:0348:547:5224:18
7:49
-0:06
15K
9.32 mi12:05:331:13:247:5324:30
7:53
+0:04
20K
12.43 mi12:30:041:37:557:5324:31
7:53
0:00
Half
13.11 mi12:35:241:43:157:535:20
7:49
-0:04
25K
15.53 mi12:54:342:02:257:5319:10
7:54
+0:05
30K
18.64 mi13:20:392:28:307:5826:05
8:24
+0:30
20M
20.00 mi13:31:342:39:257:5810:55
8:02
-0:22
21M
21.00 mi13:40:272:48:188:018:53
8:53
+0:51
35K
21.75 mi13:46:332:54:248:016:06
8:09
-0:44
23M
23.00 mi13:57:273:05:188:0310:54
8:42
+0:33
24M
24.00 mi14:06:083:13:598:058:41
8:41
-0:01
40K
24.85 mi14:14:093:22:008:088:01
9:23
+0:42
25.2M
25.20 mi14:17:563:25:478:103:47
10:58
+1:35
Finish
26.22 mi14:25:533:33:448:097:57
7:48
-3:10

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

7:48 /mi

Average Pace

8:09 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:53:28

81% of race

Time at Slower Pace

40:16

19% of race

Average Pace: 8:09 /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 mi11:16:4524:367:5524:36
7:55
#14010
10K
6.21 mi11:41:0348:547:5224:18
7:49
#13382
15K
9.32 mi12:05:331:13:247:5324:30
7:53
#13108
20K
12.43 mi12:30:041:37:557:5324:31
7:53
#12496
Half
13.11 mi12:35:241:43:157:535:20
7:49
#12424
25K
15.53 mi12:54:342:02:257:5319:10
7:54
#11827
30K
18.64 mi13:20:392:28:307:5826:05
8:24
#11420
20M
20.00 mi13:31:342:39:257:5810:55
8:02
#10967
21M
21.00 mi13:40:272:48:188:018:53
8:53
#10702
35K
21.75 mi13:46:332:54:248:016:06
8:09
#10594
23M
23.00 mi13:57:273:05:188:0310:54
8:42
#10480
24M
24.00 mi14:06:083:13:598:058:41
8:41
#10446
40K
24.85 mi14:14:093:22:008:088:01
9:23
#10537
25.2M
25.20 mi14:17:563:25:478:103:47
10:58
#10617
Finish
26.22 mi14:25:533:33:448:097:57
7:48
#10454
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi140104314431412574(Top 49%)3556(Top 33%)3556(Top 76%)
10K6.21 mi3.10 mi13382+6283954+3603954+36012843(Top 50%)3670(Top 34%)3670(Top 79%)
15K9.32 mi3.11 mi13108+2743818+1363818+13612574(Top 49%)3556(Top 33%)3556(Top 76%)
20K12.43 mi3.11 mi12496+6123479+3393479+33911088(Top 43%)2858(Top 26%)2858(Top 61%)
Half13.11 mi0.68 mi12424+723455+243455+2411511(Top 45%)3079(Top 28%)3079(Top 66%)
25K15.53 mi2.42 mi11827+5973172+2833172+2839586(Top 38%)2284(Top 21%)2284(Top 49%)
30K18.64 mi3.11 mi11420+4073056+1163056+11610116(Top 40%)2763(Top 25%)2763(Top 59%)
20M20.00 mi1.36 mi10967+4532868+1882868+1886994(Top 27%)1554(Top 14%)1554(Top 33%)
21M21.00 mi1.00 mi10702+2652790+782790+788036(Top 31%)2200(Top 20%)2200(Top 47%)
35K21.75 mi0.75 mi10594+1082763+272763+278763(Top 34%)2594(Top 24%)2594(Top 56%)
23M23.00 mi1.25 mi10480+1142771-82771-89595(Top 38%)3179(Top 29%)3179(Top 68%)
24M24.00 mi1.00 mi10446+342800-292800-2910508(Top 41%)3684(Top 34%)3684(Top 79%)
40K24.85 mi0.85 mi10537-912892-922892-9212605(Top 49%)4830(Top 44%)4830(Top 104%)
25.2M25.20 mi0.35 mi10617-802961-692961-6914391(Top 56%)5734(Top 52%)5734(Top 123%)
Finish26.22 mi1.02 mi10454+1632906+552906+557388(Top 29%)2296(Top 21%)2296(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

12574

Females

3556

F18-39

3556

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

12843

Females

3670

F18-39

3670

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

12574

Females

3556

F18-39

3556

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

11088

Females

2858

F18-39

2858

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11511

Females

3079

F18-39

3079

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

9586

Females

2284

F18-39

2284

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10116

Females

2763

F18-39

2763

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

6994

Females

1554

F18-39

1554

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8036

Females

2200

F18-39

2200

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

8763

Females

2594

F18-39

2594

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

9595

Females

3179

F18-39

3179

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10508

Females

3684

F18-39

3684

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12605

Females

4830

F18-39

4830

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14391

Females

5734

F18-39

5734

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7388

Females

2296

F18-39

2296

Passing Analysis

Category:
Athletes Passed
4372*
Passed By
816
Net Change
+3556
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14010
5K → 10K71688+628#14010#13382
10K → 15K36894+274#13382#13108
15K → 20K63725+612#13108#12496
20K → Half8513+72#12496#12424
Half → 25K60811+597#12424#11827
25K → 30K508101+407#11827#11420
30K → 20M4574+453#11420#10967
20M → 21M29227+265#10967#10702
21M → 35K12719+108#10702#10594
35K → 23M19480+114#10594#10480
23M → 24M11480+34#10480#10446
24M → 40K70*161-91#10446#10537
40K → 25.2M22102-80#10537#10617
25.2M → Finish17411+163#10617#10454
TOTALS4372*816+3556

* 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