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BOSTON MARATHON 2023

Amber Kuszak

Bib: 11170•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:49
Rank: #11163
Start → 5K
23:49 | 7:40/mi
10K· 6.21 mi
47:49
Rank: #11761 (-598)
5K → 10K
24:00 | 7:43/mi
15K· 9.32 mi
1:11:51
Rank: #11868 (-107)
10K → 15K
24:02 | 7:44/mi
20K· 12.43 mi
1:37:58
Rank: #13156 (-1288)
15K → 20K
26:07 | 8:24/mi
Half· 13.11 mi
1:42:58
Rank: #12910 (+246)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
2:01:25
Rank: #12319 (+591)
Half → 25K
18:27 | 7:37/mi
30K· 18.64 mi
2:25:28
Rank: #11636 (+683)
25K → 30K
24:03 | 7:44/mi
20M
2:35:59
Rank: #11356 (+280)
30K → 20M
10:31 | 7:44/mi
21M
2:43:52
Rank: #11034 (+322)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:49:30
Rank: #10927 (+107)
21M → 35K
5:38 | 7:32/mi
23M
2:59:09
Rank: #10716 (+211)
35K → 23M
9:39 | 7:42/mi
24M
3:06:32
Rank: #10519 (+197)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
3:12:50
Rank: #10301 (+218)
24M → 40K
6:18 | 7:22/mi
25.2M
3:15:34
Rank: #10207 (+94)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:22:37
Rank: #9930 (+277)
25.2M → Finish
7:03 | 6:55/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:58
Pace7:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:39
Pace7:36 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0223:497:4023:49
7:40
-
10K
6.21 mi11:15:0247:497:4224:00
7:43
+0:03
15K
9.32 mi11:39:041:11:517:4324:02
7:44
+0:01
20K
12.43 mi12:05:111:37:587:5326:07
8:24
+0:40
Half
13.11 mi12:10:111:42:587:515:00
7:20
-1:04
25K
15.53 mi12:28:382:01:257:4918:27
7:37
+0:17
30K
18.64 mi12:52:412:25:287:4824:03
7:44
+0:07
20M
20.00 mi13:03:122:35:597:4810:31
7:44
0:00
21M
21.00 mi13:11:052:43:527:487:53
7:53
+0:09
35K
21.75 mi13:16:432:49:307:485:38
7:32
-0:21
23M
23.00 mi13:26:222:59:097:479:39
7:42
+0:10
24M
24.00 mi13:33:453:06:327:467:23
7:23
-0:19
40K
24.85 mi13:40:033:12:507:466:18
7:22
-0:01
25.2M
25.20 mi13:42:473:15:347:462:44
7:56
+0:34
Finish
26.22 mi13:49:503:22:377:447:03
6:55
-1:01

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

6:55 /mi

Average Pace

7:44 /mi

Slowest Pace

8:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:22

15% of race

Time at Steady Pace

2:14:31

66% of race

Time at Slower Pace

36:44

18% of race

Average Pace: 7:44 /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 mi10:51:0223:497:4023:49
7:40
#11163
10K
6.21 mi11:15:0247:497:4224:00
7:43
#11761
15K
9.32 mi11:39:041:11:517:4324:02
7:44
#11868
20K
12.43 mi12:05:111:37:587:5326:07
8:24
#13156
Half
13.11 mi12:10:111:42:587:515:00
7:20
#12910
25K
15.53 mi12:28:382:01:257:4918:27
7:37
#12319
30K
18.64 mi12:52:412:25:287:4824:03
7:44
#11636
20M
20.00 mi13:03:122:35:597:4810:31
7:44
#11356
21M
21.00 mi13:11:052:43:527:487:53
7:53
#11034
35K
21.75 mi13:16:432:49:307:485:38
7:32
#10927
23M
23.00 mi13:26:222:59:097:479:39
7:42
#10716
24M
24.00 mi13:33:453:06:327:467:23
7:23
#10519
40K
24.85 mi13:40:033:12:507:466:18
7:22
#10301
25.2M
25.20 mi13:42:473:15:347:462:44
7:56
#10207
Finish
26.22 mi13:49:503:22:377:447:03
6:55
#9930
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111632410241012159(Top 46%)2981(Top 26%)2981(Top 61%)
10K6.21 mi3.10 mi11761-5982738-3282738-32812472(Top 47%)3128(Top 27%)3128(Top 64%)
15K9.32 mi3.11 mi11868-1072817-792817-7912159(Top 46%)2981(Top 26%)2981(Top 61%)
20K12.43 mi3.11 mi13156-12883581-7643581-76416276(Top 61%)5512(Top 48%)5512(Top 113%)
Half13.11 mi0.68 mi12910+2463430+1513430+1518907(Top 33%)1457(Top 13%)1457(Top 30%)
25K15.53 mi2.42 mi12319+5913126+3043126+3049638(Top 36%)1841(Top 16%)1841(Top 38%)
30K18.64 mi3.11 mi11636+6832770+3562770+3568955(Top 34%)1693(Top 15%)1693(Top 35%)
20M20.00 mi1.36 mi11356+2802628+1422628+1428467(Top 32%)1591(Top 14%)1591(Top 33%)
21M21.00 mi1.00 mi11034+3222478+1502478+1506674(Top 25%)1017(Top 9%)1017(Top 21%)
35K21.75 mi0.75 mi10927+1072439+392439+398794(Top 33%)1827(Top 16%)1827(Top 37%)
23M23.00 mi1.25 mi10716+2112367+722367+727802(Top 29%)1500(Top 13%)1500(Top 31%)
24M24.00 mi1.00 mi10519+1972291+762291+766988(Top 26%)1283(Top 11%)1283(Top 26%)
40K24.85 mi0.85 mi10301+2182202+892202+895938(Top 22%)969(Top 8%)969(Top 20%)
25.2M25.20 mi0.35 mi10207+942162+402162+406183(Top 23%)1133(Top 10%)1133(Top 23%)
Finish26.22 mi1.02 mi9930+2772064+982064+984782(Top 18%)667(Top 6%)667(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12159

Females

2981

F18-39

2981

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12472

Females

3128

F18-39

3128

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12159

Females

2981

F18-39

2981

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16276

Females

5512

F18-39

5512

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8907

Females

1457

F18-39

1457

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9638

Females

1841

F18-39

1841

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

8955

Females

1693

F18-39

1693

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8467

Females

1591

F18-39

1591

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6674

Females

1017

F18-39

1017

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8794

Females

1827

F18-39

1827

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7802

Females

1500

F18-39

1500

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6988

Females

1283

F18-39

1283

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5938

Females

969

F18-39

969

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6183

Females

1133

F18-39

1133

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4782

Females

667

F18-39

667

Passing Analysis

Category:
Athletes Passed
3548*
Passed By
2315
Net Change
+1233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11163
5K → 10K111709-598#11163#11761
10K → 15K150257-107#11761#11868
15K → 20K161304-1288#11868#13156
20K → Half2460+246#13156#12910
Half → 25K5921+591#12910#12319
25K → 30K6874+683#12319#11636
30K → 20M2833+280#11636#11356
20M → 21M3231+322#11356#11034
21M → 35K1158+107#11034#10927
35K → 23M22514+211#10927#10716
23M → 24M2025+197#10716#10519
24M → 40K2213+218#10519#10301
40K → 25.2M98*4+94#10301#10207
25.2M → Finish279*2+277#10207#9930
TOTALS3548*2315+1233

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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