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BOSTON MARATHON 2023

Liam Walsh

Bib: 13033•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:59
Rank: #8804
Start → 5K
22:59 | 7:24/mi
10K· 6.21 mi
45:23
Rank: #8466 (+338)
5K → 10K
22:24 | 7:13/mi
15K· 9.32 mi
1:08:21
Rank: #8711 (-245)
10K → 15K
22:58 | 7:24/mi
20K· 12.43 mi
1:32:32
Rank: #9379 (-668)
15K → 20K
24:11 | 7:47/mi
Half· 13.11 mi
1:37:41
Rank: #9435 (-56)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:56:42
Rank: #9756 (-321)
Half → 25K
19:01 | 7:51/mi
30K· 18.64 mi
2:22:56
Rank: #10501 (-745)
25K → 30K
26:14 | 8:27/mi
20M
2:34:55
Rank: #10899 (-398)
30K → 20M
11:59 | 8:49/mi
21M
2:44:02
Rank: #11092 (-193)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
2:50:14
Rank: #11205 (-113)
21M → 35K
6:12 | 8:17/mi
23M
3:00:50
Rank: #11318 (-113)
35K → 23M
10:36 | 8:28/mi
24M
3:09:22
Rank: #11511 (-193)
23M → 24M
8:32 | 8:32/mi
40K· 24.85 mi
3:17:04
Rank: #11719 (-208)
24M → 40K
7:42 | 9:00/mi
25.2M
3:20:07
Rank: #11714 (+5)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:28:21
Rank: #11734 (-20)
25.2M → Finish
8:14 | 8:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:41
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:50:40
Pace8:27 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5822:597:2422:59
7:24
-
10K
6.21 mi11:36:2245:237:1822:24
7:13
-0:11
15K
9.32 mi11:59:201:08:217:2022:58
7:24
+0:11
20K
12.43 mi12:23:311:32:327:2724:11
7:47
+0:23
Half
13.11 mi12:28:401:37:417:275:09
7:33
-0:14
25K
15.53 mi12:47:411:56:427:3119:01
7:51
+0:18
30K
18.64 mi13:13:552:22:567:4026:14
8:27
+0:36
20M
20.00 mi13:25:542:34:557:4511:59
8:49
+0:22
21M
21.00 mi13:35:012:44:027:499:07
9:07
+0:18
35K
21.75 mi13:41:132:50:147:506:12
8:17
-0:50
23M
23.00 mi13:51:493:00:507:5210:36
8:28
+0:11
24M
24.00 mi14:00:213:09:227:538:32
8:32
+0:04
40K
24.85 mi14:08:033:17:047:567:42
9:00
+0:28
25.2M
25.20 mi14:11:063:20:077:563:03
8:51
-0:09
Finish
26.22 mi14:19:203:28:217:578:14
8:05
-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

7:13 /mi

Average Pace

7:57 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:42

56% of race

Time at Steady Pace

59:48

29% of race

Time at Slower Pace

31:51

15% of race

Average Pace: 7:57 /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 mi11:13:5822:597:2422:59
7:24
#8804
10K
6.21 mi11:36:2245:237:1822:24
7:13
#8466
15K
9.32 mi11:59:201:08:217:2022:58
7:24
#8711
20K
12.43 mi12:23:311:32:327:2724:11
7:47
#9379
Half
13.11 mi12:28:401:37:417:275:09
7:33
#9435
25K
15.53 mi12:47:411:56:427:3119:01
7:51
#9756
30K
18.64 mi13:13:552:22:567:4026:14
8:27
#10501
20M
20.00 mi13:25:542:34:557:4511:59
8:49
#10899
21M
21.00 mi13:35:012:44:027:499:07
9:07
#11092
35K
21.75 mi13:41:132:50:147:506:12
8:17
#11205
23M
23.00 mi13:51:493:00:507:5210:36
8:28
#11318
24M
24.00 mi14:00:213:09:227:538:32
8:32
#11511
40K
24.85 mi14:08:033:17:047:567:42
9:00
#11719
25.2M
25.20 mi14:11:063:20:077:563:03
8:51
#11714
Finish
26.22 mi14:19:203:28:217:578:14
8:05
#11734
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8804748274829272(Top 35%)7720(Top 51%)7720(Top 343%)
10K6.21 mi3.10 mi8466+3387254+2287254+2288175(Top 31%)7065(Top 47%)7065(Top 314%)
15K9.32 mi3.11 mi8711-2457389-1357389-1359272(Top 35%)7720(Top 51%)7720(Top 343%)
20K12.43 mi3.11 mi9379-6687783-3947783-39411590(Top 44%)8841(Top 58%)8841(Top 393%)
Half13.11 mi0.68 mi9435-567817-347817-3410594(Top 40%)8416(Top 55%)8416(Top 374%)
25K15.53 mi2.42 mi9756-3218002-1858002-18511438(Top 43%)8686(Top 57%)8686(Top 386%)
30K18.64 mi3.11 mi10501-7458335-3338335-33313942(Top 52%)9623(Top 63%)9623(Top 427%)
20M20.00 mi1.36 mi10899-3988503-1688503-16815501(Top 58%)10200(Top 67%)10200(Top 453%)
21M21.00 mi1.00 mi11092-1938569-668569-6614035(Top 53%)9507(Top 63%)9507(Top 422%)
35K21.75 mi0.75 mi11205-1138613-448613-4413985(Top 53%)9404(Top 62%)9404(Top 418%)
23M23.00 mi1.25 mi11318-1138633-208633-2012969(Top 49%)8896(Top 59%)8896(Top 395%)
24M24.00 mi1.00 mi11511-1938696-638696-6314637(Top 55%)9570(Top 63%)9570(Top 425%)
40K24.85 mi0.85 mi11719-2088771-758771-7516127(Top 61%)10171(Top 67%)10171(Top 452%)
25.2M25.20 mi0.35 mi11714+58758+138758+1311533(Top 43%)8047(Top 53%)8047(Top 357%)
Finish26.22 mi1.02 mi11734-208741+178741+1712635(Top 47%)8595(Top 57%)8595(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9272

Males

7720

M45-49

7720

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8175

Males

7065

M45-49

7065

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9272

Males

7720

M45-49

7720

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11590

Males

8841

M45-49

8841

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10594

Males

8416

M45-49

8416

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11438

Males

8686

M45-49

8686

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13942

Males

9623

M45-49

9623

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15501

Males

10200

M45-49

10200

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14035

Males

9507

M45-49

9507

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

13985

Males

9404

M45-49

9404

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

12969

Males

8896

M45-49

8896

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14637

Males

9570

M45-49

9570

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16127

Males

10171

M45-49

10171

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11533

Males

8047

M45-49

8047

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12635

Males

8595

M45-49

8595

Passing Analysis

Category:
Athletes Passed
921*
Passed By
3850
Net Change
-2930
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8804
5K → 10K442104+338#8804#8466
10K → 15K74319-245#8466#8711
15K → 20K24692-668#8711#9379
20K → Half460-56#9379#9435
Half → 25K55376-321#9435#9756
25K → 30K45789-745#9756#10501
30K → 20M18*416-398#10501#10899
20M → 21M29222-193#10899#11092
21M → 35K18131-113#11092#11205
35K → 23M62175-113#11205#11318
23M → 24M23216-193#11318#11511
24M → 40K25233-208#11511#11719
40K → 25.2M3227+5#11719#11714
25.2M → Finish7090-20#11714#11734
TOTALS921*3850-2930

* 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