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BOSTON MARATHON 2023

Amanda Balzer

Bib: 10293•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:08
Rank: #9205
Start → 5K
23:08 | 7:27/mi
10K· 6.21 mi
45:49
Rank: #8997 (+208)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:08:30
Rank: #8836 (+161)
10K → 15K
22:41 | 7:18/mi
20K· 12.43 mi
1:31:46
Rank: #8883 (-47)
15K → 20K
23:16 | 7:29/mi
Half· 13.11 mi
1:36:54
Rank: #8948 (-65)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:55:20
Rank: #9024 (-76)
Half → 25K
18:26 | 7:36/mi
30K· 18.64 mi
2:19:27
Rank: #9019 (+5)
25K → 30K
24:07 | 7:46/mi
20M
2:29:58
Rank: #8939 (+80)
30K → 20M
10:31 | 7:44/mi
21M
2:38:08
Rank: #8891 (+48)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:43:42
Rank: #8845 (+46)
21M → 35K
5:34 | 7:26/mi
23M
2:53:36
Rank: #8842 (+3)
35K → 23M
9:54 | 7:54/mi
24M
3:01:12
Rank: #8794 (+48)
23M → 24M
7:36 | 7:36/mi
40K· 24.85 mi
3:07:46
Rank: #8731 (+63)
24M → 40K
6:34 | 7:41/mi
25.2M
3:10:38
Rank: #8707 (+24)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:18:31
Rank: #8745 (-38)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:54
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:41:37
Pace7:45 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3323:087:2723:08
7:27
-
10K
6.21 mi11:12:1445:497:2222:41
7:18
-0:09
15K
9.32 mi11:34:551:08:307:2122:41
7:18
0:00
20K
12.43 mi11:58:111:31:467:2323:16
7:29
+0:11
Half
13.11 mi12:03:191:36:547:235:08
7:31
+0:02
25K
15.53 mi12:21:451:55:207:2518:26
7:36
+0:05
30K
18.64 mi12:45:522:19:277:2924:07
7:46
+0:10
20M
20.00 mi12:56:232:29:587:3010:31
7:44
-0:02
21M
21.00 mi13:04:332:38:087:328:10
8:10
+0:26
35K
21.75 mi13:10:072:43:427:325:34
7:26
-0:44
23M
23.00 mi13:20:012:53:367:339:54
7:54
+0:28
24M
24.00 mi13:27:373:01:127:337:36
7:36
-0:18
40K
24.85 mi13:34:113:07:467:336:34
7:41
+0:05
25.2M
25.20 mi13:37:033:10:387:342:52
8:19
+0:38
Finish
26.22 mi13:44:563:18:317:357:53
7:44
-0:35

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

7:18 /mi

Average Pace

7:35 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:29

94% of race

Time at Steady Pace

11:02

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:49:3323:087:2723:08
7:27
#9205
10K
6.21 mi11:12:1445:497:2222:41
7:18
#8997
15K
9.32 mi11:34:551:08:307:2122:41
7:18
#8836
20K
12.43 mi11:58:111:31:467:2323:16
7:29
#8883
Half
13.11 mi12:03:191:36:547:235:08
7:31
#8948
25K
15.53 mi12:21:451:55:207:2518:26
7:36
#9024
30K
18.64 mi12:45:522:19:277:2924:07
7:46
#9019
20M
20.00 mi12:56:232:29:587:3010:31
7:44
#8939
21M
21.00 mi13:04:332:38:087:328:10
8:10
#8891
35K
21.75 mi13:10:072:43:427:325:34
7:26
#8845
23M
23.00 mi13:20:012:53:367:339:54
7:54
#8842
24M
24.00 mi13:27:373:01:127:337:36
7:36
#8794
40K
24.85 mi13:34:113:07:467:336:34
7:41
#8731
25.2M
25.20 mi13:37:033:10:387:342:52
8:19
#8707
Finish
26.22 mi13:44:563:18:317:357:53
7:44
#8745
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9205147714778566(Top 32%)1271(Top 11%)1271(Top 26%)
10K6.21 mi3.10 mi8997+2081411+661411+668884(Top 33%)1364(Top 12%)1364(Top 28%)
15K9.32 mi3.11 mi8836+1611361+501361+508566(Top 32%)1271(Top 11%)1271(Top 26%)
20K12.43 mi3.11 mi8883-471390-291390-299240(Top 35%)1577(Top 14%)1577(Top 32%)
Half13.11 mi0.68 mi8948-651424-341424-3410431(Top 39%)2086(Top 18%)2086(Top 43%)
25K15.53 mi2.42 mi9024-761454-301454-309567(Top 36%)1805(Top 16%)1805(Top 37%)
30K18.64 mi3.11 mi9019+51495-411495-419083(Top 34%)1733(Top 15%)1733(Top 35%)
20M20.00 mi1.36 mi8939+801480+151480+158450(Top 32%)1574(Top 14%)1574(Top 32%)
21M21.00 mi1.00 mi8891+48148014808440(Top 32%)1695(Top 15%)1695(Top 35%)
35K21.75 mi0.75 mi8845+461475+51475+58138(Top 31%)1556(Top 14%)1556(Top 32%)
23M23.00 mi1.25 mi8842+31506-311506-319134(Top 34%)2097(Top 18%)2097(Top 43%)
24M24.00 mi1.00 mi8794+481514-81514-88427(Top 32%)1846(Top 16%)1846(Top 38%)
40K24.85 mi0.85 mi8731+631510+41510+47866(Top 30%)1696(Top 15%)1696(Top 35%)
25.2M25.20 mi0.35 mi8707+241507+31507+38433(Top 32%)1984(Top 17%)1984(Top 41%)
Finish26.22 mi1.02 mi8745-381547-401547-4010216(Top 38%)2793(Top 24%)2793(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8566

Females

1271

F18-39

1271

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8884

Females

1364

F18-39

1364

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8566

Females

1271

F18-39

1271

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9240

Females

1577

F18-39

1577

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10431

Females

2086

F18-39

2086

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9567

Females

1805

F18-39

1805

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9083

Females

1733

F18-39

1733

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8450

Females

1574

F18-39

1574

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8440

Females

1695

F18-39

1695

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8138

Females

1556

F18-39

1556

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9134

Females

2097

F18-39

2097

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8427

Females

1846

F18-39

1846

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7866

Females

1696

F18-39

1696

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8433

Females

1984

F18-39

1984

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10216

Females

2793

F18-39

2793

Passing Analysis

Category:
Athletes Passed
1587
Passed By
1127
Net Change
+460
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9205
5K → 10K374166+208#9205#8997
10K → 15K22867+161#8997#8836
15K → 20K109156-47#8836#8883
20K → Half1378-65#8883#8948
Half → 25K81157-76#8948#9024
25K → 30K166161+5#9024#9019
30K → 20M12444+80#9019#8939
20M → 21M9547+48#8939#8891
21M → 35K6923+46#8891#8845
35K → 23M7572+3#8845#8842
23M → 24M8335+48#8842#8794
24M → 40K9027+63#8794#8731
40K → 25.2M3915+24#8731#8707
25.2M → Finish4179-38#8707#8745
TOTALS15871127+460
📊

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