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BOSTON MARATHON 2023

Amanda Brennen

Bib: 30981•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
31:01
Rank: #23395
Start → 5K
9:59/mi
31:01 split
10K· 6.21 mi
1:01:01
Rank: #23210 (+185)
5K → 10K
9:39/mi
30:00 split
15K· 9.32 mi
1:32:13
Rank: #23352 (-142)
10K → 15K
10:03/mi
31:12 split
20K· 12.43 mi
2:06:05
Rank: #23729 (-377)
15K → 20K
10:54/mi
33:52 split
Half· 13.11 mi
2:13:32
Rank: #23782 (-53)
20K → Half
10:55/mi
7:27 split
25K· 15.53 mi
2:41:29
Rank: #23963 (-181)
Half → 25K
11:32/mi
27:57 split
30K· 18.64 mi
3:21:03
Rank: #24327 (-364)
25K → 30K
12:44/mi
39:34 split
20M
3:38:35
Rank: #24423 (-96)
30K → 20M
12:54/mi
17:32 split
21M
3:53:57
Rank: #24598 (-175)
20M → 21M
15:22/mi
15:22 split
35K· 21.75 mi
4:03:22
Rank: #24641 (-43)
21M → 35K
12:35/mi
9:25 split
23M
4:20:25
Rank: #24746 (-105)
35K → 23M
13:37/mi
17:03 split
24M
4:33:16
Rank: #24797 (-51)
23M → 24M
12:51/mi
12:51 split
40K· 24.85 mi
4:44:37
Rank: #24842 (-45)
24M → 40K
13:16/mi
11:21 split
25.2M
4:49:01
Rank: #24835 (+7)
40K → 25.2M
12:46/mi
4:24 split
Finish· 26.22 mi
5:00:29
Rank: #24843 (-8)
25.2M → Finish
11:15/mi
11:28 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:32
Pace10:11 /mi
2nd Half
Distance13.11 mi
Time2:46:57
Pace12:44 /mi
📊Positive Split: 25.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3031:019:5931:01
9:59
-
10K
6.21 mi12:19:301:01:019:4930:00
9:39
-0:20
15K
9.32 mi12:50:421:32:139:5431:12
10:03
+0:24
20K
12.43 mi13:24:342:06:0510:0933:52
10:54
+0:51
Half
13.11 mi13:32:012:13:3210:117:27
10:55
+0:01
25K
15.53 mi13:59:582:41:2910:2427:57
11:32
+0:37
30K
18.64 mi14:39:323:21:0310:4739:34
12:44
+1:12
20M
20.00 mi14:57:043:38:3510:5617:32
12:54
+0:10
21M
21.00 mi15:12:263:53:5711:0815:22
15:22
+2:28
35K
21.75 mi15:21:514:03:2211:119:25
12:35
-2:47
23M
23.00 mi15:38:544:20:2511:1917:03
13:37
+1:02
24M
24.00 mi15:51:454:33:1611:2312:51
12:51
-0:46
40K
24.85 mi16:03:064:44:3711:2711:21
13:16
+0:25
25.2M
25.20 mi16:07:304:49:0111:284:24
12:46
-0:30
Finish
26.22 mi16:18:585:00:2911:2811:28
11:15
-1:31

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

9:39 /mi

Average Pace

11:28 /mi

Slowest Pace

15:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:57

58% of race

Time at Steady Pace

1:35:07

32% of race

Time at Slower Pace

32:25

11% of race

Average Pace: 11:28 /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 mi11:49:3031:019:5931:01
9:59
#23395
10K
6.21 mi12:19:301:01:019:4930:00
9:39
#23210
15K
9.32 mi12:50:421:32:139:5431:12
10:03
#23352
20K
12.43 mi13:24:342:06:0510:0933:52
10:54
#23729
Half
13.11 mi13:32:012:13:3210:117:27
10:55
#23782
25K
15.53 mi13:59:582:41:2910:2427:57
11:32
#23963
30K
18.64 mi14:39:323:21:0310:4739:34
12:44
#24327
20M
20.00 mi14:57:043:38:3510:5617:32
12:54
#24423
21M
21.00 mi15:12:263:53:5711:0815:22
15:22
#24598
35K
21.75 mi15:21:514:03:2211:119:25
12:35
#24641
23M
23.00 mi15:38:544:20:2511:1917:03
13:37
#24746
24M
24.00 mi15:51:454:33:1611:2312:51
12:51
#24797
40K
24.85 mi16:03:064:44:3711:2711:21
13:16
#24842
25.2M
25.20 mi16:07:304:49:0111:284:24
12:46
#24835
Finish
26.22 mi16:18:585:00:2911:2811:28
11:15
#24843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi233959601960123585(Top 89%)9660(Top 85%)9660(Top 198%)
10K6.21 mi3.10 mi23210+1859478+1239478+12322950(Top 86%)9311(Top 82%)9311(Top 191%)
15K9.32 mi3.11 mi23352-1429533-559533-5523585(Top 89%)9660(Top 85%)9660(Top 198%)
20K12.43 mi3.11 mi23729-3779733-2009733-20024488(Top 92%)10195(Top 89%)10195(Top 209%)
Half13.11 mi0.68 mi23782-539770-379770-3724840(Top 93%)10406(Top 91%)10406(Top 213%)
25K15.53 mi2.42 mi23963-1819878-1089878-10824709(Top 93%)10347(Top 91%)10347(Top 212%)
30K18.64 mi3.11 mi24327-36410111-23310111-23325193(Top 95%)10675(Top 93%)10675(Top 219%)
20M20.00 mi1.36 mi24423-9610171-6010171-6025094(Top 94%)10650(Top 93%)10650(Top 218%)
21M21.00 mi1.00 mi24598-17510266-9510266-9525937(Top 97%)11073(Top 97%)11073(Top 227%)
35K21.75 mi0.75 mi24641-4310305-3910305-3925255(Top 95%)10789(Top 94%)10789(Top 221%)
23M23.00 mi1.25 mi24746-10510374-6910374-6925586(Top 96%)10951(Top 96%)10951(Top 224%)
24M24.00 mi1.00 mi24797-5110417-4310417-4325370(Top 95%)10864(Top 95%)10864(Top 222%)
40K24.85 mi0.85 mi24842-4510446-2910446-2925178(Top 95%)10767(Top 94%)10767(Top 220%)
25.2M25.20 mi0.35 mi24835+710442+410442+423684(Top 89%)10030(Top 88%)10030(Top 205%)
Finish26.22 mi1.02 mi24843-810456-1410456-1424373(Top 92%)10345(Top 91%)10345(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23585

Females

9660

F18-39

9660

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22950

Females

9311

F18-39

9311

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23585

Females

9660

F18-39

9660

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24488

Females

10195

F18-39

10195

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24840

Females

10406

F18-39

10406

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

24709

Females

10347

F18-39

10347

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

25193

Females

10675

F18-39

10675

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

25094

Females

10650

F18-39

10650

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25937

Females

11073

F18-39

11073

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25255

Females

10789

F18-39

10789

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

25586

Females

10951

F18-39

10951

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

25370

Females

10864

F18-39

10864

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

25178

Females

10767

F18-39

10767

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23684

Females

10030

F18-39

10030

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24373

Females

10345

F18-39

10345

Passing Analysis

Category:
Athletes Passed
619
Passed By
2067
Net Change
-1448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23395
5K → 10K321136+185#23395#23210
10K → 15K93235-142#23210#23352
15K → 20K26403-377#23352#23729
20K → Half962-53#23729#23782
Half → 25K39220-181#23782#23963
25K → 30K31395-364#23963#24327
30K → 20M19115-96#24327#24423
20M → 21M5180-175#24423#24598
21M → 35K1053-43#24598#24641
35K → 23M13118-105#24641#24746
23M → 24M1263-51#24746#24797
24M → 40K1257-45#24797#24842
40K → 25.2M136+7#24842#24835
25.2M → Finish1624-8#24835#24843
TOTALS6192067-1448
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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