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BOSTON MARATHON 2023

Laurance Frierson

Bib: 9947•M

DC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:37
Rank: #7987
Start → 5K
22:37 | 7:17/mi
10K· 6.21 mi
44:59
Rank: #8029 (-42)
5K → 10K
22:22 | 7:12/mi
15K· 9.32 mi
1:07:36
Rank: #8124 (-95)
10K → 15K
22:37 | 7:17/mi
20K· 12.43 mi
1:32:27
Rank: #9317 (-1193)
15K → 20K
24:51 | 8:00/mi
Half· 13.11 mi
1:37:44
Rank: #9465 (-148)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
1:57:36
Rank: #10228 (-763)
Half → 25K
19:52 | 8:12/mi
30K· 18.64 mi
2:23:32
Rank: #10772 (-544)
25K → 30K
25:56 | 8:21/mi
20M
2:35:12
Rank: #11017 (-245)
30K → 20M
11:40 | 8:35/mi
21M
2:44:13
Rank: #11160 (-143)
20M → 21M
9:01 | 9:01/mi
35K· 21.75 mi
2:50:26
Rank: #11283 (-123)
21M → 35K
6:13 | 8:19/mi
23M
3:01:41
Rank: #11638 (-355)
35K → 23M
11:15 | 8:59/mi
24M
3:10:17
Rank: #11816 (-178)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:17:28
Rank: #11837 (-21)
24M → 40K
7:11 | 8:24/mi
25.2M
3:20:34
Rank: #11849 (-12)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:28:41
Rank: #11852 (-3)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:44
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3122:377:1722:37
7:17
-
10K
6.21 mi11:10:5344:597:1422:22
7:12
-0:05
15K
9.32 mi11:33:301:07:367:1522:37
7:17
+0:05
20K
12.43 mi11:58:211:32:277:2624:51
8:00
+0:43
Half
13.11 mi12:03:381:37:447:275:17
7:45
-0:15
25K
15.53 mi12:23:301:57:367:3419:52
8:12
+0:27
30K
18.64 mi12:49:262:23:327:4225:56
8:21
+0:09
20M
20.00 mi13:01:062:35:127:4611:40
8:35
+0:14
21M
21.00 mi13:10:072:44:137:499:01
9:01
+0:26
35K
21.75 mi13:16:202:50:267:506:13
8:19
-0:42
23M
23.00 mi13:27:353:01:417:5411:15
8:59
+0:40
24M
24.00 mi13:36:113:10:177:568:36
8:36
-0:23
40K
24.85 mi13:43:223:17:287:577:11
8:24
-0:12
25.2M
25.20 mi13:46:283:20:347:583:06
8:59
+0:35
Finish
26.22 mi13:54:353:28:417:588:07
7:58
-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

7:12 /mi

Average Pace

7:58 /mi

Slowest Pace

9:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:51

51% of race

Time at Steady Pace

1:19:28

38% of race

Time at Slower Pace

23:22

11% of race

Average Pace: 7:58 /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 mi10:48:3122:377:1722:37
7:17
#7987
10K
6.21 mi11:10:5344:597:1422:22
7:12
#8029
15K
9.32 mi11:33:301:07:367:1522:37
7:17
#8124
20K
12.43 mi11:58:211:32:277:2624:51
8:00
#9317
Half
13.11 mi12:03:381:37:447:275:17
7:45
#9465
25K
15.53 mi12:23:301:57:367:3419:52
8:12
#10228
30K
18.64 mi12:49:262:23:327:4225:56
8:21
#10772
20M
20.00 mi13:01:062:35:127:4611:40
8:35
#11017
21M
21.00 mi13:10:072:44:137:499:01
9:01
#11160
35K
21.75 mi13:16:202:50:267:506:13
8:19
#11283
23M
23.00 mi13:27:353:01:417:5411:15
8:59
#11638
24M
24.00 mi13:36:113:10:177:568:36
8:36
#11816
40K
24.85 mi13:43:223:17:287:577:11
8:24
#11837
25.2M
25.20 mi13:46:283:20:347:583:06
8:59
#11849
Finish
26.22 mi13:54:353:28:417:588:07
7:58
#11852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7987697069708405(Top 32%)7183(Top 47%)7183(Top 321%)
10K6.21 mi3.10 mi8029-426979-96979-98092(Top 30%)7008(Top 46%)7008(Top 313%)
15K9.32 mi3.11 mi8124-957033-547033-548405(Top 32%)7183(Top 47%)7183(Top 321%)
20K12.43 mi3.11 mi9317-11937741-7087741-70813393(Top 50%)9612(Top 63%)9612(Top 429%)
Half13.11 mi0.68 mi9465-1487835-947835-9412192(Top 46%)9146(Top 60%)9146(Top 408%)
25K15.53 mi2.42 mi10228-7638251-4168251-41614161(Top 53%)9824(Top 65%)9824(Top 438%)
30K18.64 mi3.11 mi10772-5448470-2198470-21913316(Top 50%)9371(Top 62%)9371(Top 418%)
20M20.00 mi1.36 mi11017-2458559-898559-8914134(Top 53%)9616(Top 63%)9616(Top 429%)
21M21.00 mi1.00 mi11160-1438604-458604-4513472(Top 51%)9250(Top 61%)9250(Top 413%)
35K21.75 mi0.75 mi11283-1238648-448648-4414109(Top 53%)9464(Top 62%)9464(Top 422%)
23M23.00 mi1.25 mi11638-3558779-1318779-13115962(Top 60%)10220(Top 67%)10220(Top 456%)
24M24.00 mi1.00 mi11816-1788838-598838-5915024(Top 56%)9755(Top 64%)9755(Top 435%)
40K24.85 mi0.85 mi11837-218820+188820+1812689(Top 48%)8624(Top 57%)8624(Top 385%)
25.2M25.20 mi0.35 mi11849-128818+28818+212392(Top 47%)8455(Top 56%)8455(Top 377%)
Finish26.22 mi1.02 mi11852-38796+228796+2211837(Top 44%)8199(Top 54%)8199(Top 366%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8405

Males

7183

M40-44

7183

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

8092

Males

7008

M40-44

7008

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8405

Males

7183

M40-44

7183

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13393

Males

9612

M40-44

9612

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

12192

Males

9146

M40-44

9146

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14161

Males

9824

M40-44

9824

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13316

Males

9371

M40-44

9371

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14134

Males

9616

M40-44

9616

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13472

Males

9250

M40-44

9250

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14109

Males

9464

M40-44

9464

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15962

Males

10220

M40-44

10220

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15024

Males

9755

M40-44

9755

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12689

Males

8624

M40-44

8624

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12392

Males

8455

M40-44

8455

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11837

Males

8199

M40-44

8199

Passing Analysis

Category:
Athletes Passed
704*
Passed By
4567
Net Change
-3865
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7987
5K → 10K202244-42#7987#8029
10K → 15K99194-95#8029#8124
15K → 20K121205-1193#8124#9317
20K → Half2150-148#9317#9465
Half → 25K26787-763#9465#10228
25K → 30K56600-544#10228#10772
30K → 20M31*276-245#10772#11017
20M → 21M46189-143#11017#11160
21M → 35K17140-123#11160#11283
35K → 23M30385-355#11283#11638
23M → 24M29207-178#11638#11816
24M → 40K5879-21#11816#11837
40K → 25.2M2436-12#11837#11849
25.2M → Finish7275-3#11849#11852
TOTALS704*4567-3865

* 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