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BOSTON MARATHON 2023

Brianna Waterstradt

Bib: 15486•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:29/mi
50:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:16:18
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:41:57
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:47:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:07:38
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:33:28
↑ 181↓ 1480.2%
20M
8:17/mi
2:44:44
↑ 64↓ 500.2%
21M
8:35/mi
2:53:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:57/mi
2:59:16
↑ 17↓ 861.7%
23M
8:25/mi
3:09:48
↑ 23↓ 630.6%
24M
8:15/mi
3:18:03
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:25:14
↓ 200.3%
25.2M
9:20/mi
3:28:27
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:36:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:35
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:49:18
Pace8:20 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2224:377:5524:37
7:55
-
10K
6.21 mi11:20:4250:578:1226:20
8:29
+0:34
15K
9.32 mi11:46:031:16:188:1125:21
8:10
-0:19
20K
12.43 mi12:11:421:41:578:1225:39
8:15
+0:05
Half
13.11 mi12:17:201:47:358:125:38
8:15
0:00
25K
15.53 mi12:37:232:07:388:1320:03
8:16
+0:01
30K
18.64 mi13:03:132:33:288:1425:50
8:19
+0:03
20M
20.00 mi13:14:292:44:448:1411:16
8:17
-0:02
21M
21.00 mi13:23:042:53:198:158:35
8:35
+0:18
35K
21.75 mi13:29:012:59:168:155:57
7:57
-0:38
23M
23.00 mi13:39:333:09:488:1510:32
8:25
+0:28
24M
24.00 mi13:47:483:18:038:158:15
8:15
-0:10
40K
24.85 mi13:54:593:25:148:157:11
8:24
+0:09
25.2M
25.20 mi13:58:123:28:278:163:13
9:20
+0:56
Finish
26.22 mi14:06:383:36:538:178:26
8:17
-1:03

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

7:55 /mi

Average Pace

8:17 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:40

99% of race

Time at Steady Pace

3:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:16 /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 mi10:54:2224:377:5524:37
7:55
#13467
10K
6.21 mi11:20:4250:578:1226:20
8:29
#15830
15K
9.32 mi11:46:031:16:188:1125:21
8:10
#15722
20K
12.43 mi12:11:421:41:578:1225:39
8:15
#15599
Half
13.11 mi12:17:201:47:358:125:38
8:15
#15636
25K
15.53 mi12:37:232:07:388:1320:03
8:16
#15469
30K
18.64 mi13:03:132:33:288:1425:50
8:19
#15016
20M
20.00 mi13:14:292:44:448:1411:16
8:17
#14824
21M
21.00 mi13:23:042:53:198:158:35
8:35
#14572
35K
21.75 mi13:29:012:59:168:155:57
7:57
#14480
23M
23.00 mi13:39:333:09:488:1510:32
8:25
#14343
24M
24.00 mi13:47:483:18:038:158:15
8:15
#14263
40K
24.85 mi13:54:593:25:148:157:11
8:24
#14192
25.2M
25.20 mi13:58:123:28:278:163:13
9:20
#14187
Finish
26.22 mi14:06:383:36:538:178:26
8:17
#14155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134673694369415583(Top 59%)5032(Top 44%)5032(Top 103%)
10K6.21 mi3.10 mi15830-23635178-14845178-148418103(Top 68%)6532(Top 57%)6532(Top 134%)
15K9.32 mi3.11 mi15722+1085107+715107+7115583(Top 59%)5032(Top 44%)5032(Top 103%)
20K12.43 mi3.11 mi15599+1235057+505057+5015320(Top 58%)4911(Top 43%)4911(Top 101%)
Half13.11 mi0.68 mi15636-375082-255082-2516201(Top 61%)5402(Top 47%)5402(Top 111%)
25K15.53 mi2.42 mi15469+1675010+725010+7214736(Top 55%)4665(Top 41%)4665(Top 96%)
30K18.64 mi3.11 mi15016+4534759+2514759+25113124(Top 49%)3828(Top 34%)3828(Top 78%)
20M20.00 mi1.36 mi14824+1924653+1064653+10612341(Top 46%)3492(Top 31%)3492(Top 71%)
21M21.00 mi1.00 mi14572+2524534+1194534+11911014(Top 41%)2887(Top 25%)2887(Top 59%)
35K21.75 mi0.75 mi14480+924497+374497+3711849(Top 45%)3356(Top 29%)3356(Top 69%)
23M23.00 mi1.25 mi14343+1374439+584439+5812694(Top 48%)3907(Top 34%)3907(Top 80%)
24M24.00 mi1.00 mi14263+804411+284411+2812968(Top 49%)4120(Top 36%)4120(Top 84%)
40K24.85 mi0.85 mi14192+714388+234388+2312747(Top 48%)4085(Top 36%)4085(Top 84%)
25.2M25.20 mi0.35 mi14187+54399-114399-1114369(Top 54%)4939(Top 43%)4939(Top 101%)
Finish26.22 mi1.02 mi14155+324392+74392+713966(Top 52%)4717(Top 41%)4717(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15583

Females

5032

F18-39

5032

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18103

Females

6532

F18-39

6532

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15583

Females

5032

F18-39

5032

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15320

Females

4911

F18-39

4911

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16201

Females

5402

F18-39

5402

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14736

Females

4665

F18-39

4665

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13124

Females

3828

F18-39

3828

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12341

Females

3492

F18-39

3492

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11014

Females

2887

F18-39

2887

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11849

Females

3356

F18-39

3356

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12694

Females

3907

F18-39

3907

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12968

Females

4120

F18-39

4120

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12747

Females

4085

F18-39

4085

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14369

Females

4939

F18-39

4939

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13966

Females

4717

F18-39

4717

Passing Analysis

Category:
Athletes Passed
2241
Passed By
2929
Net Change
-688
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13467
5K → 10K92372-2363#13467#15830
10K → 15K243135+108#15830#15722
15K → 20K234111+123#15722#15599
20K → Half2158-37#15599#15636
Half → 25K21851+167#15636#15469
25K → 30K47320+453#15469#15016
30K → 20M2008+192#15016#14824
20M → 21M2586+252#14824#14572
21M → 35K1019+92#14572#14480
35K → 23M15922+137#14480#14343
23M → 24M11535+80#14343#14263
24M → 40K9928+71#14263#14192
40K → 25.2M3126+5#14192#14187
25.2M → Finish8048+32#14187#14155
TOTALS22412929-688
📊

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