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BOSTON MARATHON 2023

Stephen Callahan

Bib: 16119•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 30%
Division (M60-64)
#0 / 1110
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:05
Rank: #9056
Start → 5K
23:05 | 7:26/mi
10K· 6.21 mi
45:25
Rank: #8499 (+557)
5K → 10K
22:20 | 7:11/mi
15K· 9.32 mi
1:07:48
Rank: #8254 (+245)
10K → 15K
22:23 | 7:12/mi
20K· 12.43 mi
1:30:21
Rank: #8036 (+218)
15K → 20K
22:33 | 7:15/mi
Half· 13.11 mi
1:35:11
Rank: #7984 (+52)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:52:48
Rank: #7792 (+192)
Half → 25K
17:37 | 7:16/mi
30K· 18.64 mi
2:15:56
Rank: #7589 (+203)
25K → 30K
23:08 | 7:27/mi
20M
2:26:33
Rank: #7637 (-48)
30K → 20M
10:37 | 7:48/mi
21M
2:34:21
Rank: #7522 (+115)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:40:25
Rank: #7676 (-154)
21M → 35K
6:04 | 8:07/mi
23M
2:49:58
Rank: #7615 (+61)
35K → 23M
9:33 | 7:38/mi
24M
2:57:25
Rank: #7575 (+40)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:03:56
Rank: #7545 (+30)
24M → 40K
6:31 | 7:37/mi
25.2M
3:06:47
Rank: #7544 (+1)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:14:28
Rank: #7577 (-33)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:11
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:39:17
Pace7:34 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4423:057:2623:05
7:26
-
10K
6.21 mi11:36:0445:257:1922:20
7:11
-0:15
15K
9.32 mi11:58:271:07:487:1622:23
7:12
+0:01
20K
12.43 mi12:21:001:30:217:1622:33
7:15
+0:03
Half
13.11 mi12:25:501:35:117:164:50
7:05
-0:10
25K
15.53 mi12:43:271:52:487:1617:37
7:16
+0:11
30K
18.64 mi13:06:352:15:567:1823:08
7:27
+0:11
20M
20.00 mi13:17:122:26:337:2010:37
7:48
+0:21
21M
21.00 mi13:25:002:34:217:217:48
7:48
0:00
35K
21.75 mi13:31:042:40:257:236:04
8:07
+0:19
23M
23.00 mi13:40:372:49:587:239:33
7:38
-0:29
24M
24.00 mi13:48:042:57:257:247:27
7:27
-0:11
40K
24.85 mi13:54:353:03:567:246:31
7:37
+0:10
25.2M
25.20 mi13:57:263:06:477:252:51
8:16
+0:39
Finish
26.22 mi14:05:073:14:287:257:41
7:32
-0:44

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

7:05 /mi

Average Pace

7:25 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:08

86% of race

Time at Steady Pace

27:20

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi11:13:4423:057:2623:05
7:26
#9056
10K
6.21 mi11:36:0445:257:1922:20
7:11
#8499
15K
9.32 mi11:58:271:07:487:1622:23
7:12
#8254
20K
12.43 mi12:21:001:30:217:1622:33
7:15
#8036
Half
13.11 mi12:25:501:35:117:164:50
7:05
#7984
25K
15.53 mi12:43:271:52:487:1617:37
7:16
#7792
30K
18.64 mi13:06:352:15:567:1823:08
7:27
#7589
20M
20.00 mi13:17:122:26:337:2010:37
7:48
#7637
21M
21.00 mi13:25:002:34:217:217:48
7:48
#7522
35K
21.75 mi13:31:042:40:257:236:04
8:07
#7676
23M
23.00 mi13:40:372:49:587:239:33
7:38
#7615
24M
24.00 mi13:48:042:57:257:247:27
7:27
#7575
40K
24.85 mi13:54:353:03:567:246:31
7:37
#7545
25.2M
25.20 mi13:57:263:06:477:252:51
8:16
#7544
Finish
26.22 mi14:05:073:14:287:257:41
7:32
#7577
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi9056763276327822(Top 29%)6799(Top 45%)6799(Top 613%)
10K6.21 mi3.10 mi8499+5577270+3627270+3628008(Top 30%)6945(Top 46%)6945(Top 626%)
15K9.32 mi3.11 mi8254+2457115+1557115+1557822(Top 29%)6799(Top 45%)6799(Top 613%)
20K12.43 mi3.11 mi8036+2186959+1566959+1567488(Top 28%)6553(Top 43%)6553(Top 590%)
Half13.11 mi0.68 mi7984+526921+386921+387056(Top 27%)6273(Top 41%)6273(Top 565%)
25K15.53 mi2.42 mi7792+1926781+1406781+1407060(Top 27%)6200(Top 41%)6200(Top 559%)
30K18.64 mi3.11 mi7589+2036617+1646617+1646866(Top 26%)5976(Top 39%)5976(Top 538%)
20M20.00 mi1.36 mi7637-486625-86625-88911(Top 33%)7126(Top 47%)7126(Top 642%)
21M21.00 mi1.00 mi7522+1156530+956530+956213(Top 23%)5344(Top 35%)5344(Top 481%)
35K21.75 mi0.75 mi7676-1546629-996629-9912793(Top 48%)8880(Top 59%)8880(Top 800%)
23M23.00 mi1.25 mi7615+616567+626567+627253(Top 27%)5980(Top 39%)5980(Top 539%)
24M24.00 mi1.00 mi7575+406517+506517+507355(Top 28%)5925(Top 39%)5925(Top 534%)
40K24.85 mi0.85 mi7545+306476+416476+417433(Top 28%)5893(Top 39%)5893(Top 531%)
25.2M25.20 mi0.35 mi7544+16468+86468+87996(Top 30%)6156(Top 41%)6156(Top 555%)
Finish26.22 mi1.02 mi7577-336469-16469-18816(Top 33%)6644(Top 44%)6644(Top 599%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7822

Males

6799

M60-64

6799

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

8008

Males

6945

M60-64

6945

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7822

Males

6799

M60-64

6799

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7488

Males

6553

M60-64

6553

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7056

Males

6273

M60-64

6273

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7060

Males

6200

M60-64

6200

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6866

Males

5976

M60-64

5976

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8911

Males

7126

M60-64

7126

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6213

Males

5344

M60-64

5344

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12793

Males

8880

M60-64

8880

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7253

Males

5980

M60-64

5980

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7355

Males

5925

M60-64

5925

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7433

Males

5893

M60-64

5893

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7996

Males

6156

M60-64

6156

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8816

Males

6644

M60-64

6644

Passing Analysis

Category:
Athletes Passed
2211
Passed By
732
Net Change
+1479
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9056
5K → 10K62366+557#9056#8499
10K → 15K29550+245#8499#8254
15K → 20K24729+218#8254#8036
20K → Half542+52#8036#7984
Half → 25K20816+192#7984#7792
25K → 30K24845+203#7792#7589
30K → 20M54102-48#7589#7637
20M → 21M12914+115#7637#7522
21M → 35K13167-154#7522#7676
35K → 23M10544+61#7676#7615
23M → 24M8444+40#7615#7575
24M → 40K7444+30#7575#7545
40K → 25.2M2625+1#7545#7544
25.2M → Finish5184-33#7544#7577
TOTALS2211732+1479
📊

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