Boston Marathon logo
BOSTON MARATHON 2023

Albert Lin

Bib: 1446•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:29
Rank: #1335
Start → 5K
19:29 | 6:16/mi
10K· 6.21 mi
38:45
Rank: #1322 (+13)
5K → 10K
19:16 | 6:12/mi
15K· 9.32 mi
57:53
Rank: #1224 (+98)
10K → 15K
19:08 | 6:10/mi
20K· 12.43 mi
1:17:08
Rank: #1173 (+51)
15K → 20K
19:15 | 6:12/mi
Half· 13.11 mi
1:21:20
Rank: #1171 (+2)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:36:26
Rank: #1150 (+21)
Half → 25K
15:06 | 6:14/mi
30K· 18.64 mi
1:55:59
Rank: #1090 (+60)
25K → 30K
19:33 | 6:18/mi
20M
2:04:40
Rank: #1071 (+19)
30K → 20M
8:41 | 6:23/mi
21M
2:11:23
Rank: #1058 (+13)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:15:56
Rank: #1040 (+18)
21M → 35K
4:33 | 6:05/mi
23M
2:23:53
Rank: #1018 (+22)
35K → 23M
7:57 | 6:21/mi
24M
2:30:13
Rank: #1016 (+2)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:35:51
Rank: #1028 (-12)
24M → 40K
5:38 | 6:35/mi
25.2M
2:38:17
Rank: #1033 (-5)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:44:37
Rank: #1031 (+2)
25.2M → Finish
6:20 | 6:13/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 HalfFaster
Distance13.11 mi
Time1:21:20
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:23:17
Pace6:21 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4619:296:1619:29
6:16
-
10K
6.21 mi10:39:0238:456:1419:16
6:12
-0:04
15K
9.32 mi10:58:1057:536:1319:08
6:10
-0:02
20K
12.43 mi11:17:251:17:086:1219:15
6:12
+0:02
Half
13.11 mi11:21:371:21:206:124:12
6:09
-0:03
25K
15.53 mi11:36:431:36:266:1215:06
6:14
+0:05
30K
18.64 mi11:56:161:55:596:1319:33
6:18
+0:04
20M
20.00 mi12:04:572:04:406:148:41
6:23
+0:05
21M
21.00 mi12:11:402:11:236:156:43
6:43
+0:20
35K
21.75 mi12:16:132:15:566:154:33
6:05
-0:38
23M
23.00 mi12:24:102:23:536:157:57
6:21
+0:16
24M
24.00 mi12:30:302:30:136:166:20
6:20
-0:01
40K
24.85 mi12:36:082:35:516:165:38
6:35
+0:15
25.2M
25.20 mi12:38:342:38:176:172:26
7:03
+0:28
Finish
26.22 mi12:44:542:44:376:176:20
6:13
-0:50

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

6:05 /mi

Average Pace

6:17 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:28

94% of race

Time at Steady Pace

9:09

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:17 /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 mi10:19:4619:296:1619:29
6:16
#1335
10K
6.21 mi10:39:0238:456:1419:16
6:12
#1322
15K
9.32 mi10:58:1057:536:1319:08
6:10
#1224
20K
12.43 mi11:17:251:17:086:1219:15
6:12
#1173
Half
13.11 mi11:21:371:21:206:124:12
6:09
#1171
25K
15.53 mi11:36:431:36:266:1215:06
6:14
#1150
30K
18.64 mi11:56:161:55:596:1319:33
6:18
#1090
20M
20.00 mi12:04:572:04:406:148:41
6:23
#1071
21M
21.00 mi12:11:402:11:236:156:43
6:43
#1058
35K
21.75 mi12:16:132:15:566:154:33
6:05
#1040
23M
23.00 mi12:24:102:23:536:157:57
6:21
#1018
24M
24.00 mi12:30:302:30:136:166:20
6:20
#1016
40K
24.85 mi12:36:082:35:516:165:38
6:35
#1028
25.2M
25.20 mi12:38:342:38:176:172:26
7:03
#1033
Finish
26.22 mi12:44:542:44:376:176:20
6:13
#1031
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1335126812681117(Top 4%)1064(Top 7%)1064(Top 20%)
10K6.21 mi3.10 mi1322+131256+121256+121361(Top 5%)1297(Top 9%)1297(Top 25%)
15K9.32 mi3.11 mi1224+981161+951161+951117(Top 4%)1064(Top 7%)1064(Top 20%)
20K12.43 mi3.11 mi1173+511117+441117+441041(Top 4%)991(Top 7%)991(Top 19%)
Half13.11 mi0.68 mi1171+21115+21115+21179(Top 4%)1128(Top 7%)1128(Top 21%)
25K15.53 mi2.42 mi1150+211095+201095+201062(Top 4%)1011(Top 7%)1011(Top 19%)
30K18.64 mi3.11 mi1090+601039+561039+56897(Top 3%)854(Top 6%)854(Top 16%)
20M20.00 mi1.36 mi1071+191020+191020+191097(Top 4%)1051(Top 7%)1051(Top 20%)
21M21.00 mi1.00 mi1058+131007+131007+131131(Top 4%)1077(Top 7%)1077(Top 20%)
35K21.75 mi0.75 mi1040+18990+17990+17878(Top 3%)835(Top 6%)835(Top 16%)
23M23.00 mi1.25 mi1018+22967+23967+23962(Top 4%)915(Top 6%)915(Top 17%)
24M24.00 mi1.00 mi1016+2966+1966+11420(Top 5%)1343(Top 9%)1343(Top 25%)
40K24.85 mi0.85 mi1028-12977-11977-111842(Top 7%)1733(Top 11%)1733(Top 33%)
25.2M25.20 mi0.35 mi1033-5982-5982-51872(Top 7%)1755(Top 12%)1755(Top 33%)
Finish26.22 mi1.02 mi1031+2981+1981+11311(Top 5%)1241(Top 8%)1241(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1117

Males

1064

M18-39

1064

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1361

Males

1297

M18-39

1297

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1117

Males

1064

M18-39

1064

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1041

Males

991

M18-39

991

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1179

Males

1128

M18-39

1128

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1062

Males

1011

M18-39

1011

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

897

Males

854

M18-39

854

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1097

Males

1051

M18-39

1051

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1131

Males

1077

M18-39

1077

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

878

Males

835

M18-39

835

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

962

Males

915

M18-39

915

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1420

Males

1343

M18-39

1343

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1842

Males

1733

M18-39

1733

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1872

Males

1755

M18-39

1755

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1311

Males

1241

M18-39

1241

Passing Analysis

Category:
Athletes Passed
522
Passed By
218
Net Change
+304
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1335
5K → 10K8269+13#1335#1322
10K → 15K1079+98#1322#1224
15K → 20K6413+51#1224#1173
20K → Half75+2#1173#1171
Half → 25K3514+21#1171#1150
25K → 30K7212+60#1150#1090
30K → 20M278+19#1090#1071
20M → 21M2714+13#1071#1058
21M → 35K191+18#1058#1040
35K → 23M286+22#1040#1018
23M → 24M1614+2#1018#1016
24M → 40K1527-12#1016#1028
40K → 25.2M611-5#1028#1033
25.2M → Finish1715+2#1033#1031
TOTALS522218+304
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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