Boston Marathon logo
BOSTON MARATHON 2023

Matthew Lynch

Bib: 1742•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:15
Rank: #2354
Start → 5K
20:15 | 6:31/mi
10K· 6.21 mi
40:10
Rank: #2294 (+60)
5K → 10K
19:55 | 6:25/mi
15K· 9.32 mi
1:00:04
Rank: #2225 (+69)
10K → 15K
19:54 | 6:24/mi
20K· 12.43 mi
1:19:58
Rank: #2110 (+115)
15K → 20K
19:54 | 6:24/mi
Half· 13.11 mi
1:24:13
Rank: #2059 (+51)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:39:32
Rank: #1922 (+137)
Half → 25K
15:19 | 6:19/mi
30K· 18.64 mi
1:59:19
Rank: #1729 (+193)
25K → 30K
19:47 | 6:22/mi
20M
2:07:52
Rank: #1648 (+81)
30K → 20M
8:33 | 6:18/mi
21M
2:14:20
Rank: #1559 (+89)
20M → 21M
6:28 | 6:28/mi
35K· 21.75 mi
2:18:55
Rank: #1523 (+36)
21M → 35K
4:35 | 6:08/mi
23M
2:26:44
Rank: #1443 (+80)
35K → 23M
7:49 | 6:15/mi
24M
2:32:46
Rank: #1373 (+70)
23M → 24M
6:02 | 6:02/mi
40K· 24.85 mi
2:38:05
Rank: #1327 (+46)
24M → 40K
5:19 | 6:13/mi
25.2M
2:40:22
Rank: #1310 (+17)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:46:22
Rank: #1249 (+61)
25.2M → Finish
6:00 | 5:53/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
Time1:24:13
Pace6:25 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:22:09
Pace6:16 /mi
📊Negative Split: 2.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5720:156:3120:15
6:31
-
10K
6.21 mi10:40:5240:106:2819:55
6:25
-0:06
15K
9.32 mi11:00:461:00:046:2719:54
6:24
-0:01
20K
12.43 mi11:20:401:19:586:2619:54
6:24
0:00
Half
13.11 mi11:24:551:24:136:254:15
6:14
-0:10
25K
15.53 mi11:40:141:39:326:2415:19
6:19
+0:05
30K
18.64 mi12:00:011:59:196:2419:47
6:22
+0:03
20M
20.00 mi12:08:342:07:526:248:33
6:18
-0:04
21M
21.00 mi12:15:022:14:206:246:28
6:28
+0:10
35K
21.75 mi12:19:372:18:556:234:35
6:08
-0:20
23M
23.00 mi12:27:262:26:446:237:49
6:15
+0:07
24M
24.00 mi12:33:282:32:466:226:02
6:02
-0:13
40K
24.85 mi12:38:472:38:056:225:19
6:13
+0:11
25.2M
25.20 mi12:41:042:40:226:222:17
6:37
+0:24
Finish
26.22 mi12:47:042:46:226:216:00
5:53
-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

5:53 /mi

Average Pace

6:21 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:50

86% of race

Time at Steady Pace

22:32

14% 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 mi10:20:5720:156:3120:15
6:31
#2354
10K
6.21 mi10:40:5240:106:2819:55
6:25
#2294
15K
9.32 mi11:00:461:00:046:2719:54
6:24
#2225
20K
12.43 mi11:20:401:19:586:2619:54
6:24
#2110
Half
13.11 mi11:24:551:24:136:254:15
6:14
#2059
25K
15.53 mi11:40:141:39:326:2415:19
6:19
#1922
30K
18.64 mi12:00:011:59:196:2419:47
6:22
#1729
20M
20.00 mi12:08:342:07:526:248:33
6:18
#1648
21M
21.00 mi12:15:022:14:206:246:28
6:28
#1559
35K
21.75 mi12:19:372:18:556:234:35
6:08
#1523
23M
23.00 mi12:27:262:26:446:237:49
6:15
#1443
24M
24.00 mi12:33:282:32:466:226:02
6:02
#1373
40K
24.85 mi12:38:472:38:056:225:19
6:13
#1327
25.2M
25.20 mi12:41:042:40:226:222:17
6:37
#1310
Finish
26.22 mi12:47:042:46:226:216:00
5:53
#1249
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2354224422442114(Top 8%)2027(Top 13%)2027(Top 38%)
10K6.21 mi3.10 mi2294+602192+522192+522281(Top 9%)2182(Top 14%)2182(Top 41%)
15K9.32 mi3.11 mi2225+692131+612131+612114(Top 8%)2027(Top 13%)2027(Top 38%)
20K12.43 mi3.11 mi2110+1152021+1102021+1101809(Top 7%)1732(Top 11%)1732(Top 33%)
Half13.11 mi0.68 mi2059+511971+501971+501476(Top 6%)1412(Top 9%)1412(Top 27%)
25K15.53 mi2.42 mi1922+1371840+1311840+1311398(Top 5%)1335(Top 9%)1335(Top 25%)
30K18.64 mi3.11 mi1729+1931653+1871653+1871123(Top 4%)1070(Top 7%)1070(Top 20%)
20M20.00 mi1.36 mi1648+811575+781575+78864(Top 3%)823(Top 5%)823(Top 16%)
21M21.00 mi1.00 mi1559+891491+841491+84606(Top 2%)571(Top 4%)571(Top 11%)
35K21.75 mi0.75 mi1523+361456+351456+351019(Top 4%)969(Top 6%)969(Top 18%)
23M23.00 mi1.25 mi1443+801377+791377+79713(Top 3%)673(Top 4%)673(Top 13%)
24M24.00 mi1.00 mi1373+701309+681309+68624(Top 2%)591(Top 4%)591(Top 11%)
40K24.85 mi0.85 mi1327+461265+441265+44698(Top 3%)661(Top 4%)661(Top 13%)
25.2M25.20 mi0.35 mi1310+171248+171248+17720(Top 3%)685(Top 5%)685(Top 13%)
Finish26.22 mi1.02 mi1249+611191+571191+57510(Top 2%)487(Top 3%)487(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2114

Males

2027

M18-39

2027

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2281

Males

2182

M18-39

2182

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2114

Males

2027

M18-39

2027

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1809

Males

1732

M18-39

1732

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1476

Males

1412

M18-39

1412

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1398

Males

1335

M18-39

1335

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1123

Males

1070

M18-39

1070

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

864

Males

823

M18-39

823

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

606

Males

571

M18-39

571

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1019

Males

969

M18-39

969

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

713

Males

673

M18-39

673

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

624

Males

591

M18-39

591

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

698

Males

661

M18-39

661

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

720

Males

685

M18-39

685

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

510

Males

487

M18-39

487

Passing Analysis

Category:
Athletes Passed
1277
Passed By
172
Net Change
+1105
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2354
5K → 10K15292+60#2354#2294
10K → 15K11344+69#2294#2225
15K → 20K12914+115#2225#2110
20K → Half521+51#2110#2059
Half → 25K1414+137#2059#1922
25K → 30K2007+193#1922#1729
30K → 20M821+81#1729#1648
20M → 21M890+89#1648#1559
21M → 35K371+36#1559#1523
35K → 23M811+80#1523#1443
23M → 24M700+70#1443#1373
24M → 40K482+46#1373#1327
40K → 25.2M192+17#1327#1310
25.2M → Finish643+61#1310#1249
TOTALS1277172+1105
📊

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