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BOSTON MARATHON 2023

Andreas Nielsen

Bib: 32125•M

0:00
0:00
/ mi
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Overall
#0 / 26622
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
26:08
Rank: #16957
Start → 5K
26:08 | 8:25/mi
10K· 6.21 mi
52:27
Rank: #17472 (-515)
5K → 10K
26:19 | 8:28/mi
15K· 9.32 mi
1:18:37
Rank: #17421 (+51)
10K → 15K
26:10 | 8:25/mi
20K· 12.43 mi
1:45:08
Rank: #17312 (+109)
15K → 20K
26:31 | 8:32/mi
Half· 13.11 mi
1:50:52
Rank: #17305 (+7)
20K → Half
5:44 | 8:24/mi
25K· 15.53 mi
2:11:38
Rank: #17178 (+127)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:38:48
Rank: #16884 (+294)
25K → 30K
27:10 | 8:45/mi
20M
2:50:48
Rank: #16775 (+109)
30K → 20M
12:00 | 8:50/mi
21M
2:59:59
Rank: #16619 (+156)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
3:06:43
Rank: #16677 (-58)
21M → 35K
6:44 | 9:00/mi
23M
3:18:18
Rank: #16714 (-37)
35K → 23M
11:35 | 9:15/mi
24M
3:27:58
Rank: #16904 (-190)
23M → 24M
9:40 | 9:40/mi
40K· 24.85 mi
3:36:14
Rank: #16991 (-87)
24M → 40K
8:16 | 9:40/mi
25.2M
3:39:35
Rank: #16977 (+14)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:48:37
Rank: #17009 (-32)
25.2M → Finish
9:02 | 8:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:52
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:57:45
Pace8:59 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0426:088:2526:08
8:25
-
10K
6.21 mi12:11:2352:278:2626:19
8:28
+0:03
15K
9.32 mi12:37:331:18:378:2626:10
8:25
-0:03
20K
12.43 mi13:04:041:45:088:2826:31
8:32
+0:07
Half
13.11 mi13:09:481:50:528:275:44
8:24
-0:08
25K
15.53 mi13:30:342:11:388:2820:46
8:34
+0:10
30K
18.64 mi13:57:442:38:488:3127:10
8:45
+0:11
20M
20.00 mi14:09:442:50:488:3212:00
8:50
+0:05
21M
21.00 mi14:18:552:59:598:349:11
9:11
+0:21
35K
21.75 mi14:25:393:06:438:356:44
9:00
-0:11
23M
23.00 mi14:37:143:18:188:3711:35
9:15
+0:15
24M
24.00 mi14:46:543:27:588:409:40
9:40
+0:25
40K
24.85 mi14:55:103:36:148:428:16
9:40
0:00
25.2M
25.20 mi14:58:313:39:358:433:21
9:43
+0:03
Finish
26.22 mi15:07:333:48:378:449:02
8:52
-0:51

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

8:24 /mi

Average Pace

8:44 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:45

86% of race

Time at Steady Pace

32:52

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:43 /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 mi11:45:0426:088:2526:08
8:25
#16957
10K
6.21 mi12:11:2352:278:2626:19
8:28
#17472
15K
9.32 mi12:37:331:18:378:2626:10
8:25
#17421
20K
12.43 mi13:04:041:45:088:2826:31
8:32
#17312
Half
13.11 mi13:09:481:50:528:275:44
8:24
#17305
25K
15.53 mi13:30:342:11:388:2820:46
8:34
#17178
30K
18.64 mi13:57:442:38:488:3127:10
8:45
#16884
20M
20.00 mi14:09:442:50:488:3212:00
8:50
#16775
21M
21.00 mi14:18:552:59:598:349:11
9:11
#16619
35K
21.75 mi14:25:393:06:438:356:44
9:00
#16677
23M
23.00 mi14:37:143:18:188:3711:35
9:15
#16714
24M
24.00 mi14:46:543:27:588:409:40
9:40
#16904
40K
24.85 mi14:55:103:36:148:428:16
9:40
#16991
25.2M
25.20 mi14:58:313:39:358:433:21
9:43
#16977
Finish
26.22 mi15:07:333:48:378:449:02
8:52
#17009
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16957110361103617276(Top 65%)11159(Top 74%)11159(Top 211%)
10K6.21 mi3.10 mi17472-51511241-20511241-20518051(Top 68%)11523(Top 76%)11523(Top 218%)
15K9.32 mi3.11 mi17421+5111231+1011231+1017276(Top 65%)11159(Top 74%)11159(Top 211%)
20K12.43 mi3.11 mi17312+10911177+5411177+5417073(Top 64%)11086(Top 73%)11086(Top 210%)
Half13.11 mi0.68 mi17305+711179-211179-217115(Top 64%)11124(Top 73%)11124(Top 210%)
25K15.53 mi2.42 mi17178+12711109+7011109+7016578(Top 62%)10794(Top 71%)10794(Top 204%)
30K18.64 mi3.11 mi16884+29410975+13410975+13415746(Top 59%)10378(Top 68%)10378(Top 196%)
20M20.00 mi1.36 mi16775+10910902+7310902+7315599(Top 59%)10250(Top 68%)10250(Top 194%)
21M21.00 mi1.00 mi16619+15610827+7510827+7514390(Top 54%)9672(Top 64%)9672(Top 183%)
35K21.75 mi0.75 mi16677-5810845-1810845-1817890(Top 67%)11091(Top 73%)11091(Top 210%)
23M23.00 mi1.25 mi16714-3710840+510840+517292(Top 65%)10821(Top 71%)10821(Top 205%)
24M24.00 mi1.00 mi16904-19010901-6110901-6119759(Top 74%)11893(Top 78%)11893(Top 225%)
40K24.85 mi0.85 mi16991-8710913-1210913-1218897(Top 71%)11435(Top 75%)11435(Top 216%)
25.2M25.20 mi0.35 mi16977+1410898+1510898+1516134(Top 61%)10178(Top 67%)10178(Top 193%)
Finish26.22 mi1.02 mi17009-3210904-610904-617322(Top 65%)10753(Top 71%)10753(Top 203%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

17276

Males

11159

M18-39

11159

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

18051

Males

11523

M18-39

11523

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

17276

Males

11159

M18-39

11159

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17073

Males

11086

M18-39

11086

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17115

Males

11124

M18-39

11124

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16578

Males

10794

M18-39

10794

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15746

Males

10378

M18-39

10378

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15599

Males

10250

M18-39

10250

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14390

Males

9672

M18-39

9672

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17890

Males

11091

M18-39

11091

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17292

Males

10821

M18-39

10821

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19759

Males

11893

M18-39

11893

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18897

Males

11435

M18-39

11435

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16134

Males

10178

M18-39

10178

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

17322

Males

10753

M18-39

10753

Passing Analysis

Category:
Athletes Passed
1681
Passed By
1733
Net Change
-52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16957
5K → 10K137652-515#16957#17472
10K → 15K218167+51#17472#17421
15K → 20K218109+109#17421#17312
20K → Half3629+7#17312#17305
Half → 25K18356+127#17305#17178
25K → 30K33036+294#17178#16884
30K → 20M13930+109#16884#16775
20M → 21M17519+156#16775#16619
21M → 35K3290-58#16619#16677
35K → 23M74111-37#16677#16714
23M → 24M20210-190#16714#16904
24M → 40K36123-87#16904#16991
40K → 25.2M3319+14#16991#16977
25.2M → Finish5082-32#16977#17009
TOTALS16811733-52
📊

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