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BOSTON MARATHON 2023

Brianna Hafen

Bib: 17325•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
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
25:14
Rank: #14894
Start → 5K
25:14 | 8:07/mi
10K· 6.21 mi
50:00
Rank: #14726 (+168)
5K → 10K
24:46 | 7:58/mi
15K· 9.32 mi
1:14:43
Rank: #14473 (+253)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:33
Rank: #14185 (+288)
15K → 20K
24:50 | 8:00/mi
Half· 13.11 mi
1:45:03
Rank: #14223 (-38)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:04:40
Rank: #14065 (+158)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:31:19
Rank: #14228 (-163)
25K → 30K
26:39 | 8:35/mi
20M
2:43:39
Rank: #14435 (-207)
30K → 20M
12:20 | 9:05/mi
21M
2:54:09
Rank: #14845 (-410)
20M → 21M
10:30 | 10:30/mi
35K· 21.75 mi
3:00:45
Rank: #14930 (-85)
21M → 35K
6:36 | 8:49/mi
23M
3:13:08
Rank: #15273 (-343)
35K → 23M
12:23 | 9:53/mi
24M
3:23:15
Rank: #15667 (-394)
23M → 24M
10:07 | 10:07/mi
40K· 24.85 mi
3:31:39
Rank: #15865 (-198)
24M → 40K
8:24 | 9:49/mi
25.2M
3:35:36
Rank: #16026 (-161)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
3:45:21
Rank: #16252 (-226)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:03
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time2:00:18
Pace9:11 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5725:148:0725:14
8:07
-
10K
6.21 mi11:40:4350:008:0324:46
7:58
-0:09
15K
9.32 mi12:05:261:14:438:0124:43
7:57
-0:01
20K
12.43 mi12:30:161:39:338:0124:50
8:00
+0:03
Half
13.11 mi12:35:461:45:038:015:30
8:04
+0:04
25K
15.53 mi12:55:232:04:408:0219:37
8:05
+0:01
30K
18.64 mi13:22:022:31:198:0726:39
8:35
+0:30
20M
20.00 mi13:34:222:43:398:1112:20
9:05
+0:30
21M
21.00 mi13:44:522:54:098:1810:30
10:30
+1:25
35K
21.75 mi13:51:283:00:458:196:36
8:49
-1:41
23M
23.00 mi14:03:513:13:088:2412:23
9:53
+1:04
24M
24.00 mi14:13:583:23:158:2810:07
10:07
+0:14
40K
24.85 mi14:22:223:31:398:318:24
9:49
-0:18
25.2M
25.20 mi14:26:193:35:368:333:57
11:27
+1:38
Finish
26.22 mi14:36:043:45:218:369:45
9:34
-1:53

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

7:57 /mi

Average Pace

8:36 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:40

55% of race

Time at Steady Pace

45:35

20% of race

Time at Slower Pace

55:06

24% of race

Average Pace: 8:36 /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 mi11:15:5725:148:0725:14
8:07
#14894
10K
6.21 mi11:40:4350:008:0324:46
7:58
#14726
15K
9.32 mi12:05:261:14:438:0124:43
7:57
#14473
20K
12.43 mi12:30:161:39:338:0124:50
8:00
#14185
Half
13.11 mi12:35:461:45:038:015:30
8:04
#14223
25K
15.53 mi12:55:232:04:408:0219:37
8:05
#14065
30K
18.64 mi13:22:022:31:198:0726:39
8:35
#14228
20M
20.00 mi13:34:222:43:398:1112:20
9:05
#14435
21M
21.00 mi13:44:522:54:098:1810:30
10:30
#14845
35K
21.75 mi13:51:283:00:458:196:36
8:49
#14930
23M
23.00 mi14:03:513:13:088:2412:23
9:53
#15273
24M
24.00 mi14:13:583:23:158:2810:07
10:07
#15667
40K
24.85 mi14:22:223:31:398:318:24
9:49
#15865
25.2M
25.20 mi14:26:193:35:368:333:57
11:27
#16026
Finish
26.22 mi14:36:043:45:218:369:45
9:34
#16252
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148944580458014050(Top 53%)4119(Top 36%)4119(Top 84%)
10K6.21 mi3.10 mi14726+1684484+964484+9614614(Top 55%)4430(Top 39%)4430(Top 91%)
15K9.32 mi3.11 mi14473+2534343+1414343+14114050(Top 53%)4119(Top 36%)4119(Top 84%)
20K12.43 mi3.11 mi14185+2884196+1474196+14713390(Top 50%)3762(Top 33%)3762(Top 77%)
Half13.11 mi0.68 mi14223-384215-194215-1914948(Top 56%)4668(Top 41%)4668(Top 96%)
25K15.53 mi2.42 mi14065+1584149+664149+6613474(Top 51%)3913(Top 34%)3913(Top 80%)
30K18.64 mi3.11 mi14228-1634283-1344283-13414800(Top 56%)4818(Top 42%)4818(Top 99%)
20M20.00 mi1.36 mi14435-2074440-1574440-15716934(Top 64%)6114(Top 54%)6114(Top 125%)
21M21.00 mi1.00 mi14845-4104693-2534693-25319599(Top 74%)7697(Top 67%)7697(Top 158%)
35K21.75 mi0.75 mi14930-854769-764769-7617069(Top 64%)6307(Top 55%)6307(Top 129%)
23M23.00 mi1.25 mi15273-3435011-2425011-24219669(Top 74%)7776(Top 68%)7776(Top 159%)
24M24.00 mi1.00 mi15667-3945284-2735284-27321111(Top 79%)8610(Top 75%)8610(Top 176%)
40K24.85 mi0.85 mi15865-1985402-1185402-11819467(Top 73%)7748(Top 68%)7748(Top 159%)
25.2M25.20 mi0.35 mi16026-1615495-935495-9321467(Top 81%)8833(Top 77%)8833(Top 181%)
Finish26.22 mi1.02 mi16252-2265638-1435638-14320352(Top 76%)8209(Top 72%)8209(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14050

Females

4119

F18-39

4119

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14614

Females

4430

F18-39

4430

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14050

Females

4119

F18-39

4119

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13390

Females

3762

F18-39

3762

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14948

Females

4668

F18-39

4668

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13474

Females

3913

F18-39

3913

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14800

Females

4818

F18-39

4818

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

16934

Females

6114

F18-39

6114

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19599

Females

7697

F18-39

7697

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

17069

Females

6307

F18-39

6307

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19669

Females

7776

F18-39

7776

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21111

Females

8610

F18-39

8610

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19467

Females

7748

F18-39

7748

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21467

Females

8833

F18-39

8833

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20352

Females

8209

F18-39

8209

Passing Analysis

Category:
Athletes Passed
1612
Passed By
2970
Net Change
-1358
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14894
5K → 10K381213+168#14894#14726
10K → 15K34390+253#14726#14473
15K → 20K33951+288#14473#14185
20K → Half1452-38#14185#14223
Half → 25K22668+158#14223#14065
25K → 30K145308-163#14065#14228
30K → 20M37244-207#14228#14435
20M → 21M9419-410#14435#14845
21M → 35K28113-85#14845#14930
35K → 23M23366-343#14930#15273
23M → 24M18412-394#15273#15667
24M → 40K21219-198#15667#15865
40K → 25.2M6167-161#15865#16026
25.2M → Finish22248-226#16026#16252
TOTALS16122970-1358
📊

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