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BOSTON MARATHON 2024

Bronwyn Nair

PA

Bib: 21457 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:47/mi
27:16
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:55/mi
54:58
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:06/mi
1:23:13
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:28/mi
1:52:37
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:20/mi
1:58:59
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:58/mi
2:23:08
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:07/mi
2:54:34
↑ 181↓ 1480.2%
138 ft elev
20M
10:22/mi
3:08:39
↑ 64↓ 500.2%
148 ft elev
21M
11:22/mi
3:20:01
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:59/mi
3:27:29
↑ 17↓ 861.7%
156 ft elev
23M
10:59/mi
3:41:14
↑ 23↓ 630.6%
116 ft elev
24M
11:00/mi
3:52:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:17/mi
4:01:53
↓ 200.3%
20 ft elev
25.2M
12:40/mi
4:06:15
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:19/mi
4:16:46
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:59
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:17:47
Pace10:31 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3527:168:4727:16
8:47
-
10K
6.21 mi11:52:1754:588:5127:42
8:55
+0:08
15K
9.32 mi12:20:321:23:138:5628:15
9:06
+0:11
20K
12.43 mi12:49:561:52:379:0429:24
9:28
+0:22
Half
13.11 mi12:56:181:58:599:056:22
9:20
-0:08
25K
15.53 mi13:20:272:23:089:1324:09
9:58
+0:38
30K
18.64 mi13:51:532:54:349:2231:26
10:07
+0:09
20M
20.00 mi14:05:583:08:399:2614:05
10:22
+0:15
21M
21.00 mi14:17:203:20:019:3111:22
11:22
+1:00
35K
21.75 mi14:24:483:27:299:327:28
9:59
-1:23
23M
23.00 mi14:38:333:41:149:3713:45
10:59
+1:00
24M
24.00 mi14:49:333:52:149:4111:00
11:00
+0:01
40K
24.85 mi14:59:124:01:539:449:39
11:17
+0:17
25.2M
25.20 mi15:03:344:06:159:464:22
12:40
+1:23
Finish
26.22 mi15:14:054:16:469:4810:31
10:19
-2:21

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

8:47 /mi

Average Pace

9:48 /mi

Slowest Pace

12:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:59

46% of race

Time at Steady Pace

1:27:39

34% of race

Time at Slower Pace

50:08

20% of race

Average Pace: 9:48 /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 mi11:24:3527:168:4727:16
8:47
#19187
10K
6.21 mi11:52:1754:588:5127:42
8:55
#19259
15K
9.32 mi12:20:321:23:138:5628:15
9:06
#19264
20K
12.43 mi12:49:561:52:379:0429:24
9:28
#19234
Half
13.11 mi12:56:181:58:599:056:22
9:20
#19249
25K
15.53 mi13:20:272:23:089:1324:09
9:58
#19214
30K
18.64 mi13:51:532:54:349:2231:26
10:07
#18889
20M
20.00 mi14:05:583:08:399:2614:05
10:22
#18780
21M
21.00 mi14:17:203:20:019:3111:22
11:22
#18679
35K
21.75 mi14:24:483:27:299:327:28
9:59
#18593
23M
23.00 mi14:38:333:41:149:3713:45
10:59
#18556
24M
24.00 mi14:49:333:52:149:4111:00
11:00
#18584
40K
24.85 mi14:59:124:01:539:449:39
11:17
#18584
25.2M
25.20 mi15:03:344:06:159:464:22
12:40
#18570
Finish
26.22 mi15:14:054:16:469:4810:31
10:19
#18586
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi19187746574651930574217421
10K6.21 mi3.10 mi19259-727467-27467-21941275087508
15K9.32 mi3.11 mi19264-57435+327435+321930574217421
20K12.43 mi3.11 mi19234+307430+57430+51908373147314
Half13.11 mi0.68 mi19249-157441-117441-111954076217621
25K15.53 mi2.42 mi19214+357417+247417+241901473767376
30K18.64 mi3.11 mi18889+3257307+1107307+1101771368916891
20M20.00 mi1.36 mi18780+1097272+357272+351760870207020
21M21.00 mi1.00 mi18679+1017254+187254+181733070137013
35K21.75 mi0.75 mi18593+867219+357219+351711069106910
23M23.00 mi1.25 mi18556+377228-97228-91838676007600
24M24.00 mi1.00 mi18584-287262-347262-341923880808080
40K24.85 mi0.85 mi185847282-207282-201882279257925
25.2M25.20 mi0.35 mi18570+147289-77289-71894279727972
Finish26.22 mi1.02 mi18586-167327-387327-381948582158215

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

19305

Females

7421

F45-49

7421

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

19412

Females

7508

F45-49

7508

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

19305

Females

7421

F45-49

7421

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19083

Females

7314

F45-49

7314

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

19540

Females

7621

F45-49

7621

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19014

Females

7376

F45-49

7376

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

17713

Females

6891

F45-49

6891

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

17608

Females

7020

F45-49

7020

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

17330

Females

7013

F45-49

7013

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17110

Females

6910

F45-49

6910

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

18386

Females

7600

F45-49

7600

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19238

Females

8080

F45-49

8080

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

18822

Females

7925

F45-49

7925

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

18942

Females

7972

F45-49

7972

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

19485

Females

8215

F45-49

8215

Passing Analysis

Category:
Athletes Passed
2122
Passed By
1521
Net Change
+601
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19187
5K → 10K223295-72#19187#19259
10K → 15K231236-5#19259#19264
15K → 20K264234+30#19264#19234
20K → Half3247-15#19234#19249
Half → 25K208173+35#19249#19214
25K → 30K40580+325#19214#18889
30K → 20M15344+109#18889#18780
20M → 21M15049+101#18780#18679
21M → 35K10721+86#18679#18593
35K → 23M12992+37#18593#18556
23M → 24M6290-28#18556#18584
24M → 40K56560#18584#18584
40K → 25.2M3723+14#18584#18570
25.2M → Finish6581-16#18570#18586
TOTALS21221521+601

Passing Charts

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