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BOSTON MARATHON 2023

Niklas Ahlund

Bib: 709•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 0.5%
Gender (Male)
#0 / 15176
Top 0.8%
Division (M18-39)
#0 / 5285
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:51
Rank: #97
Start → 5K
16:51 | 5:25/mi
10K· 6.21 mi
33:55
Rank: #108 (-11)
5K → 10K
17:04 | 5:30/mi
15K· 9.32 mi
51:25
Rank: #136 (-28)
10K → 15K
17:30 | 5:38/mi
20K· 12.43 mi
1:08:47
Rank: #140 (-4)
15K → 20K
17:22 | 5:35/mi
Half· 13.11 mi
1:12:36
Rank: #141 (-1)
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:26:34
Rank: #142 (-1)
Half → 25K
13:58 | 5:46/mi
30K· 18.64 mi
1:45:02
Rank: #149 (-7)
25K → 30K
18:28 | 5:57/mi
20M
1:53:00
Rank: #148 (+1)
30K → 20M
7:58 | 5:52/mi
21M
1:59:09
Rank: #150 (-2)
20M → 21M
6:09 | 6:09/mi
35K· 21.75 mi
2:03:25
Rank: #151 (-1)
21M → 35K
4:16 | 5:42/mi
23M
2:10:48
Rank: #149 (+2)
35K → 23M
7:23 | 5:54/mi
24M
2:16:31
Rank: #144 (+5)
23M → 24M
5:43 | 5:43/mi
40K· 24.85 mi
2:21:32
Rank: #142 (+2)
24M → 40K
5:01 | 5:52/mi
25.2M
2:23:42
Rank: #137 (+5)
40K → 25.2M
2:10 | 6:17/mi
Finish· 26.22 mi
2:29:28
Rank: #135 (+2)
25.2M → Finish
5:46 | 5:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:12:36
Pace5:32 /mi
2nd Half
Distance13.11 mi
Time1:16:52
Pace5:52 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:5216:515:2516:51
5:25
-
10K
6.21 mi10:33:5633:555:2817:04
5:30
+0:05
15K
9.32 mi10:51:2651:255:3117:30
5:38
+0:08
20K
12.43 mi11:08:481:08:475:3217:22
5:35
-0:03
Half
13.11 mi11:12:371:12:365:323:49
5:36
+0:01
25K
15.53 mi11:26:351:26:345:3413:58
5:46
+0:10
30K
18.64 mi11:45:031:45:025:3818:28
5:57
+0:11
20M
20.00 mi11:53:011:53:005:397:58
5:52
-0:05
21M
21.00 mi11:59:101:59:095:406:09
6:09
+0:17
35K
21.75 mi12:03:262:03:255:404:16
5:42
-0:27
23M
23.00 mi12:10:492:10:485:417:23
5:54
+0:12
24M
24.00 mi12:16:322:16:315:415:43
5:43
-0:11
40K
24.85 mi12:21:332:21:325:425:01
5:52
+0:09
25.2M
25.20 mi12:23:432:23:425:422:10
6:17
+0:25
Finish
26.22 mi12:29:292:29:285:425:46
5:40
-0:37

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

5:25 /mi

Average Pace

5:42 /mi

Slowest Pace

6:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:09

94% of race

Time at Steady Pace

8:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:42 /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 mi10:16:5216:515:2516:51
5:25
#97
10K
6.21 mi10:33:5633:555:2817:04
5:30
#108
15K
9.32 mi10:51:2651:255:3117:30
5:38
#136
20K
12.43 mi11:08:481:08:475:3217:22
5:35
#140
Half
13.11 mi11:12:371:12:365:323:49
5:36
#141
25K
15.53 mi11:26:351:26:345:3413:58
5:46
#142
30K
18.64 mi11:45:031:45:025:3818:28
5:57
#149
20M
20.00 mi11:53:011:53:005:397:58
5:52
#148
21M
21.00 mi11:59:101:59:095:406:09
6:09
#150
35K
21.75 mi12:03:262:03:255:404:16
5:42
#151
23M
23.00 mi12:10:492:10:485:417:23
5:54
#149
24M
24.00 mi12:16:322:16:315:415:43
5:43
#144
40K
24.85 mi12:21:332:21:325:425:01
5:52
#142
25.2M
25.20 mi12:23:432:23:425:422:10
6:17
#137
Finish
26.22 mi12:29:292:29:285:425:46
5:40
#135
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi979797171(Top 0.6%)144(Top 0.9%)144(Top 3%)
10K6.21 mi3.10 mi108-11108-11108-11147(Top 0.6%)122(Top 0.8%)122(Top 2%)
15K9.32 mi3.11 mi136-28119-11119-11171(Top 0.6%)144(Top 0.9%)144(Top 3%)
20K12.43 mi3.11 mi140-4121-2121-2136(Top 0.5%)116(Top 0.8%)116(Top 2%)
Half13.11 mi0.68 mi141-1122-1122-1180(Top 0.7%)158(Top 1%)158(Top 3%)
25K15.53 mi2.42 mi142-1123-1123-1225(Top 0.8%)202(Top 1%)202(Top 4%)
30K18.64 mi3.11 mi149-7128-5128-5312(Top 1%)286(Top 2%)286(Top 5%)
20M20.00 mi1.36 mi148+1127+1127+1209(Top 0.8%)187(Top 1%)187(Top 4%)
21M21.00 mi1.00 mi150-2129-2129-2194(Top 0.7%)173(Top 1%)173(Top 3%)
35K21.75 mi0.75 mi151-1130-1130-1219(Top 0.8%)196(Top 1%)196(Top 4%)
23M23.00 mi1.25 mi149+2128+2128+2205(Top 0.8%)181(Top 1%)181(Top 3%)
24M24.00 mi1.00 mi144+5123+5123+5177(Top 0.7%)154(Top 1%)154(Top 3%)
40K24.85 mi0.85 mi142+2122+1122+1188(Top 0.7%)167(Top 1%)167(Top 3%)
25.2M25.20 mi0.35 mi137+5117+5117+5206(Top 0.8%)187(Top 1%)187(Top 4%)
Finish26.22 mi1.02 mi135+2115+2115+2190(Top 0.7%)174(Top 1%)174(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.6%
×21stories
+97ft-345ft

Overall

171

Males

144

M18-39

144

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5stories
+79ft-138ft

Overall

147

Males

122

M18-39

122

10K→15K

6.2 - 9.3 mi

Top 0.6%
×3stories
+67ft-78ft

Overall

171

Males

144

M18-39

144

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

136

Males

116

M18-39

116

20K→Half

12.4 - 13.1 mi

Top 0.7%
×2stories
+19ft-37ft

Overall

180

Males

158

M18-39

158

Half→25K

13.1 - 15.5 mi

Top 0.8%
×4stories
+66ft-88ft

Overall

225

Males

202

M18-39

202

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

312

Males

286

M18-39

286

30K→20M

18.6 - 20.0 mi

Top 0.8%
×5stories
+64ft-50ft

Overall

209

Males

187

M18-39

187

20M→21M

20.0 - 21.0 mi

Top 0.7%
×8stories
+106ft-24ft

Overall

194

Males

173

M18-39

173

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7stories
+17ft-86ft

Overall

219

Males

196

M18-39

196

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

205

Males

181

M18-39

181

23M→24M

23.0 - 24.0 mi

Top 0.7%
×6stories
+12ft-82ft

Overall

177

Males

154

M18-39

154

24M→40K

24.0 - 24.9 mi

Top 0.7%
×1story
+6ft-20ft

Overall

188

Males

167

M18-39

167

40K→25.2M

24.9 - 25.2 mi

Top 0.8%
×1story
+13ft-16ft

Overall

206

Males

187

M18-39

187

25.2M→Finish

25.2 - 26.2 mi

Top 0.7%
×2stories
+22ft-21ft

Overall

190

Males

174

M18-39

174

Passing Analysis

Category:
Athletes Passed
41
Passed By
79
Net Change
-38
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#97
5K → 10K112-11#97#108
10K → 15K331-28#108#136
15K → 20K26-4#136#140
20K → Half12-1#140#141
Half → 25K67-1#141#142
25K → 30K18-7#142#149
30K → 20M43+1#149#148
20M → 21M02-2#148#150
21M → 35K12-1#150#151
35K → 23M42+2#151#149
23M → 24M61+5#149#144
24M → 40K31+2#144#142
40K → 25.2M50+5#142#137
25.2M → Finish42+2#137#135
TOTALS4179-38
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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