Boston Marathon logo
BOSTON MARATHON 2023

Jacob Greeneway

Bib: 552•M

WI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 0.9%
Gender (Male)
#0 / 15176
Top 1%
Division (M18-39)
#0 / 5285
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:54
Rank: #838
Start → 5K
18:54 | 6:05/mi
10K· 6.21 mi
37:10
Rank: #694 (+144)
5K → 10K
18:16 | 5:53/mi
15K· 9.32 mi
55:41
Rank: #667 (+27)
10K → 15K
18:31 | 5:58/mi
20K· 12.43 mi
1:14:02
Rank: #591 (+76)
15K → 20K
18:21 | 5:54/mi
Half· 13.11 mi
1:18:02
Rank: #577 (+14)
20K → Half
4:00 | 5:52/mi
25K· 15.53 mi
1:32:10
Rank: #531 (+46)
Half → 25K
14:08 | 5:50/mi
30K· 18.64 mi
1:50:03
Rank: #427 (+104)
25K → 30K
17:53 | 5:45/mi
20M
1:57:51
Rank: #387 (+40)
30K → 20M
7:48 | 5:44/mi
21M
2:03:57
Rank: #373 (+14)
20M → 21M
6:06 | 6:06/mi
35K· 21.75 mi
2:08:03
Rank: #355 (+18)
21M → 35K
4:06 | 5:29/mi
23M
2:15:05
Rank: #317 (+38)
35K → 23M
7:02 | 5:37/mi
24M
2:20:31
Rank: #290 (+27)
23M → 24M
5:26 | 5:26/mi
40K· 24.85 mi
2:25:19
Rank: #269 (+21)
24M → 40K
4:48 | 5:37/mi
25.2M
2:27:30
Rank: #261 (+8)
40K → 25.2M
2:11 | 6:20/mi
Finish· 26.22 mi
2:33:11
Rank: #245 (+16)
25.2M → Finish
5:41 | 5:35/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time1:18:02
Pace5:57 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:15:09
Pace5:44 /mi
📊Negative Split: 3.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0518:546:0518:54
6:05
-
10K
6.21 mi10:37:2137:105:5918:16
5:53
-0:12
15K
9.32 mi10:55:5255:415:5818:31
5:58
+0:05
20K
12.43 mi11:14:131:14:025:5718:21
5:54
-0:04
Half
13.11 mi11:18:131:18:025:574:00
5:52
-0:02
25K
15.53 mi11:32:211:32:105:5614:08
5:50
-0:02
30K
18.64 mi11:50:141:50:035:5417:53
5:45
-0:05
20M
20.00 mi11:58:021:57:515:547:48
5:44
-0:01
21M
21.00 mi12:04:082:03:575:546:06
6:06
+0:22
35K
21.75 mi12:08:142:08:035:534:06
5:29
-0:37
23M
23.00 mi12:15:162:15:055:527:02
5:37
+0:08
24M
24.00 mi12:20:422:20:315:515:26
5:26
-0:11
40K
24.85 mi12:25:302:25:195:514:48
5:37
+0:11
25.2M
25.20 mi12:27:412:27:305:512:11
6:20
+0:43
Finish
26.22 mi12:33:222:33:115:515:41
5:35
-0:45

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

5:26 /mi

Average Pace

5:51 /mi

Slowest Pace

6:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:00

82% of race

Time at Steady Pace

27:11

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:51 /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 mi10:19:0518:546:0518:54
6:05
#838
10K
6.21 mi10:37:2137:105:5918:16
5:53
#694
15K
9.32 mi10:55:5255:415:5818:31
5:58
#667
20K
12.43 mi11:14:131:14:025:5718:21
5:54
#591
Half
13.11 mi11:18:131:18:025:574:00
5:52
#577
25K
15.53 mi11:32:211:32:105:5614:08
5:50
#531
30K
18.64 mi11:50:141:50:035:5417:53
5:45
#427
20M
20.00 mi11:58:021:57:515:547:48
5:44
#387
21M
21.00 mi12:04:082:03:575:546:06
6:06
#373
35K
21.75 mi12:08:142:08:035:534:06
5:29
#355
23M
23.00 mi12:15:162:15:055:527:02
5:37
#317
24M
24.00 mi12:20:422:20:315:515:26
5:26
#290
40K
24.85 mi12:25:302:25:195:514:48
5:37
#269
25.2M
25.20 mi12:27:412:27:305:512:11
6:20
#261
Finish
26.22 mi12:33:222:33:115:515:41
5:35
#245
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi838788788618(Top 2%)575(Top 4%)575(Top 11%)
10K6.21 mi3.10 mi694+144650+138650+138550(Top 2%)508(Top 3%)508(Top 10%)
15K9.32 mi3.11 mi667+27624+26624+26618(Top 2%)575(Top 4%)575(Top 11%)
20K12.43 mi3.11 mi591+76548+76548+76420(Top 2%)385(Top 3%)385(Top 7%)
Half13.11 mi0.68 mi577+14535+13535+13457(Top 2%)419(Top 3%)419(Top 8%)
25K15.53 mi2.42 mi531+46491+44491+44310(Top 1%)282(Top 2%)282(Top 5%)
30K18.64 mi3.11 mi427+104394+97394+97133(Top 0.5%)113(Top 0.7%)113(Top 2%)
20M20.00 mi1.36 mi387+40355+39355+39127(Top 0.5%)108(Top 0.7%)108(Top 2%)
21M21.00 mi1.00 mi373+14341+14341+14161(Top 0.6%)141(Top 0.9%)141(Top 3%)
35K21.75 mi0.75 mi355+18324+17324+1795(Top 0.4%)77(Top 0.5%)77(Top 1%)
23M23.00 mi1.25 mi317+38286+38286+3870(Top 0.3%)56(Top 0.4%)56(Top 1%)
24M24.00 mi1.00 mi290+27260+26260+2662(Top 0.2%)47(Top 0.3%)47(Top 0.9%)
40K24.85 mi0.85 mi269+21241+19241+1967(Top 0.3%)57(Top 0.4%)57(Top 1%)
25.2M25.20 mi0.35 mi261+8234+7234+7248(Top 0.9%)228(Top 2%)228(Top 4%)
Finish26.22 mi1.02 mi245+16219+15219+15131(Top 0.5%)117(Top 0.8%)117(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

618

Males

575

M18-39

575

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

550

Males

508

M18-39

508

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

618

Males

575

M18-39

575

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

420

Males

385

M18-39

385

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

457

Males

419

M18-39

419

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

310

Males

282

M18-39

282

25K→30K

15.5 - 18.6 mi

Top 0.5%
×9stories
+181ft-148ft

Overall

133

Males

113

M18-39

113

30K→20M

18.6 - 20.0 mi

Top 0.5%
×5stories
+64ft-50ft

Overall

127

Males

108

M18-39

108

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8stories
+106ft-24ft

Overall

161

Males

141

M18-39

141

21M→35K

21.0 - 21.8 mi

Top 0.4%
×7stories
+17ft-86ft

Overall

95

Males

77

M18-39

77

35K→23M

21.8 - 23.0 mi

Top 0.3%
×5stories
+23ft-63ft

Overall

70

Males

56

M18-39

56

23M→24M

23.0 - 24.0 mi

Top 0.2%
×6stories
+12ft-82ft

Overall

62

Males

47

M18-39

47

24M→40K

24.0 - 24.9 mi

Top 0.3%
×1story
+6ft-20ft

Overall

67

Males

57

M18-39

57

40K→25.2M

24.9 - 25.2 mi

Top 0.9%
×1story
+13ft-16ft

Overall

248

Males

228

M18-39

228

25.2M→Finish

25.2 - 26.2 mi

Top 0.5%
×2stories
+22ft-21ft

Overall

131

Males

117

M18-39

117

Passing Analysis

Category:
Athletes Passed
605
Passed By
12
Net Change
+593
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#838
5K → 10K1462+144#838#694
10K → 15K369+27#694#667
15K → 20K760+76#667#591
20K → Half140+14#591#577
Half → 25K460+46#577#531
25K → 30K1040+104#531#427
30K → 20M400+40#427#387
20M → 21M151+14#387#373
21M → 35K180+18#373#355
35K → 23M380+38#355#317
23M → 24M270+27#317#290
24M → 40K210+21#290#269
40K → 25.2M80+8#269#261
25.2M → Finish160+16#261#245
TOTALS60512+593
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing