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BOSTON MARATHON 2023

Andrew Nack

Bib: 8110•M

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:45
Rank: #13750
Start → 5K
7:58/mi
24:45 split
10K· 6.21 mi
48:57
Rank: #13394 (+356)
5K → 10K
7:47/mi
24:12 split
15K· 9.32 mi
1:13:02
Rank: #12998 (+396)
10K → 15K
7:45/mi
24:05 split
20K· 12.43 mi
1:37:18
Rank: #12649 (+349)
15K → 20K
7:49/mi
24:16 split
Half· 13.11 mi
1:42:34
Rank: #12606 (+43)
20K → Half
7:43/mi
5:16 split
25K· 15.53 mi
2:01:36
Rank: #12419 (+187)
Half → 25K
7:51/mi
19:02 split
30K· 18.64 mi
2:26:52
Rank: #12288 (+131)
25K → 30K
8:08/mi
25:16 split
20M
2:37:59
Rank: #12207 (+81)
30K → 20M
8:11/mi
11:07 split
21M
2:46:31
Rank: #12090 (+117)
20M → 21M
8:32/mi
8:32 split
35K· 21.75 mi
2:52:12
Rank: #11976 (+114)
21M → 35K
7:36/mi
5:41 split
23M
3:01:36
Rank: #11611 (+365)
35K → 23M
7:30/mi
9:24 split
24M
3:08:50
Rank: #11310 (+301)
23M → 24M
7:14/mi
7:14 split
40K· 24.85 mi
3:15:02
Rank: #11018 (+292)
24M → 40K
7:15/mi
6:12 split
25.2M
3:17:39
Rank: #10879 (+139)
40K → 25.2M
7:35/mi
2:37 split
Finish· 26.22 mi
3:24:36
Rank: #10532 (+347)
25.2M → Finish
6:49/mi
6:57 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:34
Pace7:49 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:02
Pace7:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0924:457:5824:45
7:58
-
10K
6.21 mi11:14:2148:577:5324:12
7:47
-0:11
15K
9.32 mi11:38:261:13:027:5024:05
7:45
-0:02
20K
12.43 mi12:02:421:37:187:5024:16
7:49
+0:04
Half
13.11 mi12:07:581:42:347:495:16
7:43
-0:06
25K
15.53 mi12:27:002:01:367:5019:02
7:51
+0:08
30K
18.64 mi12:52:162:26:527:5325:16
8:08
+0:17
20M
20.00 mi13:03:232:37:597:5411:07
8:11
+0:03
21M
21.00 mi13:11:552:46:317:568:32
8:32
+0:21
35K
21.75 mi13:17:362:52:127:555:41
7:36
-0:56
23M
23.00 mi13:27:003:01:367:549:24
7:30
-0:06
24M
24.00 mi13:34:143:08:507:527:14
7:14
-0:16
40K
24.85 mi13:40:263:15:027:516:12
7:15
+0:01
25.2M
25.20 mi13:43:033:17:397:512:37
7:35
+0:20
Finish
26.22 mi13:50:003:24:367:496:57
6:49
-0:46

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

6:49 /mi

Average Pace

7:49 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:47

15% of race

Time at Steady Pace

1:45:09

51% of race

Time at Slower Pace

1:09:40

34% of race

Average Pace: 7:48 /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 mi10:50:0924:457:5824:45
7:58
#13750
10K
6.21 mi11:14:2148:577:5324:12
7:47
#13394
15K
9.32 mi11:38:261:13:027:5024:05
7:45
#12998
20K
12.43 mi12:02:421:37:187:5024:16
7:49
#12649
Half
13.11 mi12:07:581:42:347:495:16
7:43
#12606
25K
15.53 mi12:27:002:01:367:5019:02
7:51
#12419
30K
18.64 mi12:52:162:26:527:5325:16
8:08
#12288
20M
20.00 mi13:03:232:37:597:5411:07
8:11
#12207
21M
21.00 mi13:11:552:46:317:568:32
8:32
#12090
35K
21.75 mi13:17:362:52:127:555:41
7:36
#11976
23M
23.00 mi13:27:003:01:367:549:24
7:30
#11611
24M
24.00 mi13:34:143:08:507:527:14
7:14
#11310
40K
24.85 mi13:40:263:15:027:516:12
7:15
#11018
25.2M
25.20 mi13:43:033:17:397:512:37
7:35
#10879
Finish
26.22 mi13:50:003:24:367:496:57
6:49
#10532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi137509854985412291(Top 46%)9200(Top 61%)9200(Top 174%)
10K6.21 mi3.10 mi13394+3569696+1589696+15813006(Top 49%)9555(Top 63%)9555(Top 181%)
15K9.32 mi3.11 mi12998+3969523+1739523+17312291(Top 46%)9200(Top 61%)9200(Top 174%)
20K12.43 mi3.11 mi12649+3499346+1779346+17711817(Top 44%)8938(Top 59%)8938(Top 169%)
Half13.11 mi0.68 mi12606+439323+239323+2311964(Top 45%)9041(Top 60%)9041(Top 171%)
25K15.53 mi2.42 mi12419+1879226+979226+9711490(Top 43%)8705(Top 57%)8705(Top 165%)
30K18.64 mi3.11 mi12288+1319124+1029124+10211867(Top 45%)8743(Top 58%)8743(Top 165%)
20M20.00 mi1.36 mi12207+819084+409084+4011528(Top 43%)8491(Top 56%)8491(Top 161%)
21M21.00 mi1.00 mi12090+1179012+729012+7210660(Top 40%)7940(Top 52%)7940(Top 150%)
35K21.75 mi0.75 mi11976+1148951+618951+619245(Top 35%)7222(Top 48%)7222(Top 137%)
23M23.00 mi1.25 mi11611+3658762+1898762+1896470(Top 24%)5492(Top 36%)5492(Top 104%)
24M24.00 mi1.00 mi11310+3018610+1528610+1525958(Top 22%)5088(Top 34%)5088(Top 96%)
40K24.85 mi0.85 mi11018+2928441+1698441+1695174(Top 19%)4470(Top 29%)4470(Top 85%)
25.2M25.20 mi0.35 mi10879+1398356+858356+854372(Top 16%)3842(Top 25%)3842(Top 73%)
Finish26.22 mi1.02 mi10532+3478152+2048152+2044207(Top 16%)3711(Top 24%)3711(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12291

Males

9200

M18-39

9200

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13006

Males

9555

M18-39

9555

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12291

Males

9200

M18-39

9200

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11817

Males

8938

M18-39

8938

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11964

Males

9041

M18-39

9041

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11490

Males

8705

M18-39

8705

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11867

Males

8743

M18-39

8743

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11528

Males

8491

M18-39

8491

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10660

Males

7940

M18-39

7940

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9245

Males

7222

M18-39

7222

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6470

Males

5492

M18-39

5492

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5958

Males

5088

M18-39

5088

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5174

Males

4470

M18-39

4470

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4372

Males

3842

M18-39

3842

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4207

Males

3711

M18-39

3711

Passing Analysis

Category:
Athletes Passed
3772
Passed By
554
Net Change
+3218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13750
5K → 10K522166+356#13750#13394
10K → 15K45963+396#13394#12998
15K → 20K39344+349#12998#12649
20K → Half5613+43#12649#12606
Half → 25K23043+187#12606#12419
25K → 30K268137+131#12419#12288
30K → 20M13352+81#12288#12207
20M → 21M14932+117#12207#12090
21M → 35K1184+114#12090#11976
35K → 23M3650+365#11976#11611
23M → 24M3010+301#11611#11310
24M → 40K2920+292#11310#11018
40K → 25.2M1390+139#11018#10879
25.2M → Finish3470+347#10879#10532
TOTALS3772554+3218
📊

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