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BOSTON MARATHON 2023

Shervin Ghaemmaghami

Bib: 10824•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 31%
Masters (Masters Men)
#0 / 9891
Top 16%
Division (M45-49)
#0 / 2252
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:20
Rank: #7409
Start → 5K
22:20 | 7:11/mi
10K· 6.21 mi
44:24
Rank: #7390 (+19)
5K → 10K
22:04 | 7:06/mi
15K· 9.32 mi
1:06:24
Rank: #7259 (+131)
10K → 15K
22:00 | 7:05/mi
20K· 12.43 mi
1:28:08
Rank: #6872 (+387)
15K → 20K
21:44 | 7:00/mi
Half· 13.11 mi
1:32:49
Rank: #6819 (+53)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:49:37
Rank: #6532 (+287)
Half → 25K
16:48 | 6:56/mi
30K· 18.64 mi
2:11:29
Rank: #6150 (+382)
25K → 30K
21:52 | 7:02/mi
20M
2:20:58
Rank: #5938 (+212)
30K → 20M
9:29 | 6:59/mi
21M
2:28:17
Rank: #5769 (+169)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:33:24
Rank: #5707 (+62)
21M → 35K
5:07 | 6:50/mi
23M
2:42:04
Rank: #5508 (+199)
35K → 23M
8:40 | 6:55/mi
24M
2:48:47
Rank: #5342 (+166)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:54:28
Rank: #5163 (+179)
24M → 40K
5:41 | 6:39/mi
25.2M
2:57:04
Rank: #5120 (+43)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:04:04
Rank: #5059 (+61)
25.2M → Finish
7:00 | 6:52/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:32:49
Pace7:05 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:31:15
Pace6:58 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5222:207:1122:20
7:11
-
10K
6.21 mi11:10:5644:247:0922:04
7:06
-0:05
15K
9.32 mi11:32:561:06:247:0722:00
7:05
-0:01
20K
12.43 mi11:54:401:28:087:0621:44
7:00
-0:05
Half
13.11 mi11:59:211:32:497:054:41
6:52
-0:08
25K
15.53 mi12:16:091:49:377:0316:48
6:56
+0:04
30K
18.64 mi12:38:012:11:297:0321:52
7:02
+0:06
20M
20.00 mi12:47:302:20:587:039:29
6:59
-0:03
21M
21.00 mi12:54:492:28:177:047:19
7:19
+0:20
35K
21.75 mi12:59:562:33:247:035:07
6:50
-0:29
23M
23.00 mi13:08:362:42:047:038:40
6:55
+0:05
24M
24.00 mi13:15:192:48:477:026:43
6:43
-0:12
40K
24.85 mi13:21:002:54:287:015:41
6:39
-0:04
25.2M
25.20 mi13:23:362:57:047:022:36
7:32
+0:53
Finish
26.22 mi13:30:363:04:047:027:00
6:52
-0:40

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

6:39 /mi

Average Pace

7:02 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:09

95% of race

Time at Steady Pace

9:55

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:01 /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 mi10:48:5222:207:1122:20
7:11
#7409
10K
6.21 mi11:10:5644:247:0922:04
7:06
#7390
15K
9.32 mi11:32:561:06:247:0722:00
7:05
#7259
20K
12.43 mi11:54:401:28:087:0621:44
7:00
#6872
Half
13.11 mi11:59:211:32:497:054:41
6:52
#6819
25K
15.53 mi12:16:091:49:377:0316:48
6:56
#6532
30K
18.64 mi12:38:012:11:297:0321:52
7:02
#6150
20M
20.00 mi12:47:302:20:587:039:29
6:59
#5938
21M
21.00 mi12:54:492:28:177:047:19
7:19
#5769
35K
21.75 mi12:59:562:33:247:035:07
6:50
#5707
23M
23.00 mi13:08:362:42:047:038:40
6:55
#5508
24M
24.00 mi13:15:192:48:477:026:43
6:43
#5342
40K
24.85 mi13:21:002:54:287:015:41
6:39
#5163
25.2M
25.20 mi13:23:362:57:047:022:36
7:32
#5120
Finish
26.22 mi13:30:363:04:047:027:00
6:52
#5059
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7409657565757021(Top 26%)6254(Top 41%)6254(Top 278%)
10K6.21 mi3.10 mi7390+196552+236552+237445(Top 28%)6555(Top 43%)6555(Top 291%)
15K9.32 mi3.11 mi7259+1316442+1106442+1107021(Top 26%)6254(Top 41%)6254(Top 278%)
20K12.43 mi3.11 mi6872+3876157+2856157+2855945(Top 22%)5431(Top 36%)5431(Top 241%)
Half13.11 mi0.68 mi6819+536114+436114+435723(Top 21%)5255(Top 35%)5255(Top 233%)
25K15.53 mi2.42 mi6532+2875875+2395875+2395141(Top 19%)4744(Top 31%)4744(Top 211%)
30K18.64 mi3.11 mi6150+3825577+2985577+2984599(Top 17%)4258(Top 28%)4258(Top 189%)
20M20.00 mi1.36 mi5938+2125407+1705407+1703924(Top 15%)3652(Top 24%)3652(Top 162%)
21M21.00 mi1.00 mi5769+1695265+1425265+1423724(Top 14%)3455(Top 23%)3455(Top 153%)
35K21.75 mi0.75 mi5707+625217+485217+484460(Top 17%)4078(Top 27%)4078(Top 181%)
23M23.00 mi1.25 mi5508+1995043+1745043+1743393(Top 13%)3146(Top 21%)3146(Top 140%)
24M24.00 mi1.00 mi5342+1664894+1494894+1493230(Top 12%)2996(Top 20%)2996(Top 133%)
40K24.85 mi0.85 mi5163+1794738+1564738+1562134(Top 8%)1998(Top 13%)1998(Top 89%)
25.2M25.20 mi0.35 mi5120+434700+384700+384083(Top 15%)3625(Top 24%)3625(Top 161%)
Finish26.22 mi1.02 mi5059+614646+544646+544448(Top 17%)3881(Top 26%)3881(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7021

Males

6254

M45-49

6254

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7445

Males

6555

M45-49

6555

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7021

Males

6254

M45-49

6254

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5945

Males

5431

M45-49

5431

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5723

Males

5255

M45-49

5255

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5141

Males

4744

M45-49

4744

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4599

Males

4258

M45-49

4258

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3924

Males

3652

M45-49

3652

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3724

Males

3455

M45-49

3455

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4460

Males

4078

M45-49

4078

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3393

Males

3146

M45-49

3146

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3230

Males

2996

M45-49

2996

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2134

Males

1998

M45-49

1998

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4083

Males

3625

M45-49

3625

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4448

Males

3881

M45-49

3881

Passing Analysis

Category:
Athletes Passed
2679
Passed By
329
Net Change
+2350
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7409
5K → 10K229210+19#7409#7390
10K → 15K20675+131#7390#7259
15K → 20K3892+387#7259#6872
20K → Half563+53#6872#6819
Half → 25K2892+287#6819#6532
25K → 30K3875+382#6532#6150
30K → 20M2142+212#6150#5938
20M → 21M1712+169#5938#5769
21M → 35K664+62#5769#5707
35K → 23M2056+199#5707#5508
23M → 24M1693+166#5508#5342
24M → 40K1790+179#5342#5163
40K → 25.2M452+43#5163#5120
25.2M → Finish7413+61#5120#5059
TOTALS2679329+2350
📊

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