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BOSTON MARATHON 2023

Britney Biddle

NY

Bib: 12588 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:53/mi
21:22
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:57/mi
42:58
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:06/mi
1:05:02
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:13/mi
1:27:27
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:04/mi
1:32:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:16/mi
1:49:53
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:38/mi
2:13:37
↑ 181↓ 1480.2%
138 ft elev
20M
7:53/mi
2:24:20
↑ 64↓ 500.2%
148 ft elev
21M
8:13/mi
2:32:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:20/mi
2:38:02
↑ 17↓ 861.7%
156 ft elev
23M
7:38/mi
2:47:36
↑ 23↓ 630.6%
116 ft elev
24M
7:29/mi
2:55:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:37/mi
3:01:36
↓ 200.3%
20 ft elev
25.2M
7:58/mi
3:04:21
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:06/mi
3:11:35
↑ 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
Time1:32:16
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:39:19
Pace7:35 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0221:226:5321:22
6:53
-
10K
6.21 mi11:10:3842:586:5521:36
6:57
+0:04
15K
9.32 mi11:32:421:05:026:5922:04
7:06
+0:09
20K
12.43 mi11:55:071:27:277:0222:25
7:13
+0:07
Half
13.11 mi11:59:561:32:167:024:49
7:04
-0:09
25K
15.53 mi12:17:331:49:537:0417:37
7:16
+0:12
30K
18.64 mi12:41:172:13:377:1023:44
7:38
+0:22
20M
20.00 mi12:52:002:24:207:1310:43
7:53
+0:15
21M
21.00 mi13:00:132:32:337:168:13
8:13
+0:20
35K
21.75 mi13:05:422:38:027:165:29
7:20
-0:53
23M
23.00 mi13:15:162:47:367:179:34
7:38
+0:18
24M
24.00 mi13:22:452:55:057:187:29
7:29
-0:09
40K
24.85 mi13:29:163:01:367:186:31
7:37
+0:08
25.2M
25.20 mi13:32:013:04:217:192:45
7:58
+0:21
Finish
26.22 mi13:39:153:11:357:197:14
7:06
-0:52

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

6:53 /mi

Average Pace

7:19 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:05

68% of race

Time at Steady Pace

53:17

28% of race

Time at Slower Pace

8:13

4% of race

Average Pace: 7:18 /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 mi10:49:0221:226:5321:22
6:53
#5400
10K
6.21 mi11:10:3842:586:5521:36
6:57
#5940
15K
9.32 mi11:32:421:05:026:5922:04
7:06
#6371
20K
12.43 mi11:55:071:27:277:0222:25
7:13
#6560
Half
13.11 mi11:59:561:32:167:024:49
7:04
#6582
25K
15.53 mi12:17:331:49:537:0417:37
7:16
#6636
30K
18.64 mi12:41:172:13:377:1023:44
7:38
#6797
20M
20.00 mi12:52:002:24:207:1310:43
7:53
#6928
21M
21.00 mi13:00:132:32:337:168:13
8:13
#6949
35K
21.75 mi13:05:422:38:027:165:29
7:20
#6939
23M
23.00 mi13:15:162:47:367:179:34
7:38
#6912
24M
24.00 mi13:22:452:55:057:187:29
7:29
#6910
40K
24.85 mi13:29:163:01:367:186:31
7:37
#6900
25.2M
25.20 mi13:32:013:04:217:192:45
7:58
#6865
Finish
26.22 mi13:39:153:11:357:197:14
7:06
#6801
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi54004084087176(Top 27%)801(Top 7%)801(Top 16%)
10K6.21 mi3.10 mi5940-540496-88496-886516(Top 24%)640(Top 6%)640(Top 13%)
15K9.32 mi3.11 mi6371-431598-102598-1027176(Top 27%)801(Top 7%)801(Top 16%)
20K12.43 mi3.11 mi6560-189645-47645-477205(Top 27%)843(Top 7%)843(Top 17%)
Half13.11 mi0.68 mi6582-22655-10655-106969(Top 26%)753(Top 7%)753(Top 15%)
25K15.53 mi2.42 mi6636-54669-14669-147077(Top 27%)859(Top 8%)859(Top 18%)
30K18.64 mi3.11 mi6797-161728-59728-598233(Top 31%)1396(Top 12%)1396(Top 29%)
20M20.00 mi1.36 mi6928-131765-37765-379473(Top 36%)1999(Top 17%)1999(Top 41%)
21M21.00 mi1.00 mi6949-21787-22787-228709(Top 33%)1794(Top 16%)1794(Top 37%)
35K21.75 mi0.75 mi6939+10793-6793-67353(Top 28%)1228(Top 11%)1228(Top 25%)
23M23.00 mi1.25 mi6912+27812-19812-197380(Top 28%)1322(Top 12%)1322(Top 27%)
24M24.00 mi1.00 mi6910+2833-21833-217613(Top 29%)1518(Top 13%)1518(Top 31%)
40K24.85 mi0.85 mi6900+10844-11844-117467(Top 28%)1540(Top 13%)1540(Top 32%)
25.2M25.20 mi0.35 mi6865+35845-1845-16397(Top 24%)1181(Top 10%)1181(Top 24%)
Finish26.22 mi1.02 mi6801+64837+8837+85841(Top 22%)1017(Top 9%)1017(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7176

Females

801

F18-39

801

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6516

Females

640

F18-39

640

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7176

Females

801

F18-39

801

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7205

Females

843

F18-39

843

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6969

Females

753

F18-39

753

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7077

Females

859

F18-39

859

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8233

Females

1396

F18-39

1396

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9473

Females

1999

F18-39

1999

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8709

Females

1794

F18-39

1794

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7353

Females

1228

F18-39

1228

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7380

Females

1322

F18-39

1322

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7613

Females

1518

F18-39

1518

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7467

Females

1540

F18-39

1540

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6397

Females

1181

F18-39

1181

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5841

Females

1017

F18-39

1017

Passing Analysis

Category:
Athletes Passed
705
Passed By
2106
Net Change
-1401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5400
5K → 10K45585-540#5400#5940
10K → 15K22453-431#5940#6371
15K → 20K56245-189#6371#6560
20K → Half1335-22#6560#6582
Half → 25K56110-54#6582#6636
25K → 30K67228-161#6636#6797
30K → 20M26157-131#6797#6928
20M → 21M5172-21#6928#6949
21M → 35K3828+10#6949#6939
35K → 23M8760+27#6939#6912
23M → 24M5452+2#6912#6910
24M → 40K5545+10#6910#6900
40K → 25.2M5116+35#6900#6865
25.2M → Finish8420+64#6865#6801
TOTALS7052106-1401
📊

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