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BOSTON MARATHON 2023

Matthew Grannis

Bib: 2665•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:56
Rank: #1869
Start → 5K
19:56 | 6:25/mi
10K· 6.21 mi
39:36
Rank: #1860 (+9)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
59:19
Rank: #1842 (+18)
10K → 15K
19:43 | 6:21/mi
20K· 12.43 mi
1:19:07
Rank: #1782 (+60)
15K → 20K
19:48 | 6:22/mi
Half· 13.11 mi
1:23:26
Rank: #1790 (-8)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:38:54
Rank: #1766 (+24)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
1:58:55
Rank: #1657 (+109)
25K → 30K
20:01 | 6:27/mi
20M
2:07:37
Rank: #1612 (+45)
30K → 20M
8:42 | 6:24/mi
21M
2:14:15
Rank: #1541 (+71)
20M → 21M
6:38 | 6:38/mi
35K· 21.75 mi
2:18:50
Rank: #1510 (+31)
21M → 35K
4:35 | 6:08/mi
23M
2:26:43
Rank: #1441 (+69)
35K → 23M
7:53 | 6:18/mi
24M
2:32:45
Rank: #1372 (+69)
23M → 24M
6:02 | 6:02/mi
40K· 24.85 mi
2:38:02
Rank: #1320 (+52)
24M → 40K
5:17 | 6:11/mi
25.2M
2:40:18
Rank: #1297 (+23)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:46:24
Rank: #1255 (+42)
25.2M → Finish
6:06 | 5:59/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:23:26
Pace6:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:58
Pace6:20 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3919:566:2519:56
6:25
-
10K
6.21 mi10:40:1939:366:2219:40
6:20
-0:05
15K
9.32 mi11:00:0259:196:2219:43
6:21
+0:01
20K
12.43 mi11:19:501:19:076:2219:48
6:22
+0:01
Half
13.11 mi11:24:091:23:266:224:19
6:20
-0:02
25K
15.53 mi11:39:371:38:546:2215:28
6:23
+0:03
30K
18.64 mi11:59:381:58:556:2320:01
6:27
+0:04
20M
20.00 mi12:08:202:07:376:238:42
6:24
-0:03
21M
21.00 mi12:14:582:14:156:246:38
6:38
+0:14
35K
21.75 mi12:19:332:18:506:234:35
6:08
-0:30
23M
23.00 mi12:27:262:26:436:237:53
6:18
+0:10
24M
24.00 mi12:33:282:32:456:226:02
6:02
-0:16
40K
24.85 mi12:38:452:38:026:215:17
6:11
+0:09
25.2M
25.20 mi12:41:012:40:186:222:16
6:34
+0:23
Finish
26.22 mi12:47:072:46:246:216:06
5:59
-0:35

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

5:59 /mi

Average Pace

6:21 /mi

Slowest Pace

6:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:46

96% of race

Time at Steady Pace

6:38

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:21 /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 mi10:20:3919:566:2519:56
6:25
#1869
10K
6.21 mi10:40:1939:366:2219:40
6:20
#1860
15K
9.32 mi11:00:0259:196:2219:43
6:21
#1842
20K
12.43 mi11:19:501:19:076:2219:48
6:22
#1782
Half
13.11 mi11:24:091:23:266:224:19
6:20
#1790
25K
15.53 mi11:39:371:38:546:2215:28
6:23
#1766
30K
18.64 mi11:59:381:58:556:2320:01
6:27
#1657
20M
20.00 mi12:08:202:07:376:238:42
6:24
#1612
21M
21.00 mi12:14:582:14:156:246:38
6:38
#1541
35K
21.75 mi12:19:332:18:506:234:35
6:08
#1510
23M
23.00 mi12:27:262:26:436:237:53
6:18
#1441
24M
24.00 mi12:33:282:32:456:226:02
6:02
#1372
40K
24.85 mi12:38:452:38:026:215:17
6:11
#1320
25.2M
25.20 mi12:41:012:40:186:222:16
6:34
#1297
Finish
26.22 mi12:47:072:46:246:216:06
5:59
#1255
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1869178217821844(Top 7%)1766(Top 12%)1766(Top 79%)
10K6.21 mi3.10 mi1860+91780+21780+21886(Top 7%)1805(Top 12%)1805(Top 81%)
15K9.32 mi3.11 mi1842+181762+181762+181844(Top 7%)1766(Top 12%)1766(Top 79%)
20K12.43 mi3.11 mi1782+601705+571705+571681(Top 6%)1609(Top 11%)1609(Top 72%)
Half13.11 mi0.68 mi1790-81713-81713-81837(Top 7%)1762(Top 12%)1762(Top 79%)
25K15.53 mi2.42 mi1766+241690+231690+231629(Top 6%)1559(Top 10%)1559(Top 70%)
30K18.64 mi3.11 mi1657+1091582+1081582+1081347(Top 5%)1289(Top 8%)1289(Top 58%)
20M20.00 mi1.36 mi1612+451541+411541+411152(Top 4%)1102(Top 7%)1102(Top 49%)
21M21.00 mi1.00 mi1541+711473+681473+68940(Top 4%)892(Top 6%)892(Top 40%)
35K21.75 mi0.75 mi1510+311443+301443+301020(Top 4%)970(Top 6%)970(Top 43%)
23M23.00 mi1.25 mi1441+691375+681375+68836(Top 3%)794(Top 5%)794(Top 35%)
24M24.00 mi1.00 mi1372+691308+671308+67625(Top 2%)592(Top 4%)592(Top 26%)
40K24.85 mi0.85 mi1320+521258+501258+50632(Top 2%)597(Top 4%)597(Top 27%)
25.2M25.20 mi0.35 mi1297+231236+221236+22630(Top 2%)597(Top 4%)597(Top 27%)
Finish26.22 mi1.02 mi1255+421196+401196+40695(Top 3%)664(Top 4%)664(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1844

Males

1766

M40-44

1766

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1886

Males

1805

M40-44

1805

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1844

Males

1766

M40-44

1766

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1681

Males

1609

M40-44

1609

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1837

Males

1762

M40-44

1762

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1629

Males

1559

M40-44

1559

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1347

Males

1289

M40-44

1289

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1152

Males

1102

M40-44

1102

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

940

Males

892

M40-44

892

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1020

Males

970

M40-44

970

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

836

Males

794

M40-44

794

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

625

Males

592

M40-44

592

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

632

Males

597

M40-44

597

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

630

Males

597

M40-44

597

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

695

Males

664

M40-44

664

Passing Analysis

Category:
Athletes Passed
849
Passed By
235
Net Change
+614
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1869
5K → 10K10697+9#1869#1860
10K → 15K6749+18#1860#1842
15K → 20K8525+60#1842#1782
20K → Half1220-8#1782#1790
Half → 25K4319+24#1790#1766
25K → 30K1178+109#1766#1657
30K → 20M483+45#1657#1612
20M → 21M732+71#1612#1541
21M → 35K354+31#1541#1510
35K → 23M701+69#1510#1441
23M → 24M690+69#1441#1372
24M → 40K531+52#1372#1320
40K → 25.2M230+23#1320#1297
25.2M → Finish486+42#1297#1255
TOTALS849235+614
📊

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