Boston Marathon logo
BOSTON MARATHON 2023

Christopher Mcisaac

Bib: 594•M

OR

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 11%
Division (M18-39)
#0 / 5285
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:07/mi
18:59
↑ 97↓ 3451.5%
10K· 6.21 mi
6:00/mi
37:39
↑ 79↓ 1380.4%
15K· 9.32 mi
6:04/mi
56:29
↑ 67↓ 78
20K· 12.43 mi
6:18/mi
1:16:03
↑ 106↓ 860.1%
Half· 13.11 mi
6:17/mi
1:20:20
↑ 19↓ 370.5%
25K· 15.53 mi
6:30/mi
1:36:06
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
1:57:11
↑ 181↓ 1480.2%
20M
6:45/mi
2:06:21
↑ 64↓ 500.2%
21M
7:14/mi
2:13:35
↑ 106↓ 241.6%
35K· 21.75 mi
6:33/mi
2:18:29
↑ 17↓ 861.7%
23M
6:51/mi
2:27:03
↑ 23↓ 630.6%
24M
6:44/mi
2:33:47
↓ 821.3%
40K· 24.85 mi
6:56/mi
2:39:43
↓ 200.3%
25.2M
7:35/mi
2:42:20
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
2:49:38
↑ 22↓ 21

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
Time1:20:20
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:29:18
Pace6:49 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1318:596:0718:59
6:07
-
10K
6.21 mi10:37:5337:396:0418:40
6:00
-0:07
15K
9.32 mi10:56:4356:296:0418:50
6:04
+0:04
20K
12.43 mi11:16:171:16:036:0719:34
6:18
+0:14
Half
13.11 mi11:20:341:20:206:084:17
6:17
-0:01
25K
15.53 mi11:36:201:36:066:1115:46
6:30
+0:13
30K
18.64 mi11:57:251:57:116:1721:05
6:47
+0:17
20M
20.00 mi12:06:352:06:216:199:10
6:45
-0:02
21M
21.00 mi12:13:492:13:356:227:14
7:14
+0:29
35K
21.75 mi12:18:432:18:296:224:54
6:33
-0:41
23M
23.00 mi12:27:172:27:036:248:34
6:51
+0:18
24M
24.00 mi12:34:012:33:476:246:44
6:44
-0:07
40K
24.85 mi12:39:572:39:436:265:56
6:56
+0:12
25.2M
25.20 mi12:42:342:42:206:272:37
7:35
+0:39
Finish
26.22 mi12:49:522:49:386:287:18
7:10
-0:25

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

6:00 /mi

Average Pace

6:28 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:06

57% of race

Time at Steady Pace

56:23

33% of race

Time at Slower Pace

17:09

10% of race

Average Pace: 6:28 /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 mi10:19:1318:596:0718:59
6:07
#923
10K
6.21 mi10:37:5337:396:0418:40
6:00
#861
15K
9.32 mi10:56:4356:296:0418:50
6:04
#856
20K
12.43 mi11:16:171:16:036:0719:34
6:18
#961
Half
13.11 mi11:20:341:20:206:084:17
6:17
#988
25K
15.53 mi11:36:201:36:066:1115:46
6:30
#1086
30K
18.64 mi11:57:251:57:116:1721:05
6:47
#1290
20M
20.00 mi12:06:352:06:216:199:10
6:45
#1359
21M
21.00 mi12:13:492:13:356:227:14
7:14
#1418
35K
21.75 mi12:18:432:18:296:224:54
6:33
#1454
23M
23.00 mi12:27:172:27:036:248:34
6:51
#1495
24M
24.00 mi12:34:012:33:476:246:44
6:44
#1536
40K
24.85 mi12:39:572:39:436:265:56
6:56
#1579
25.2M
25.20 mi12:42:342:42:206:272:37
7:35
#1602
Finish
26.22 mi12:49:522:49:386:287:18
7:10
#1711
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi923869869857(Top 3%)810(Top 5%)810(Top 15%)
10K6.21 mi3.10 mi861+62811+58811+58821(Top 3%)775(Top 5%)775(Top 15%)
15K9.32 mi3.11 mi856+5808+3808+3857(Top 3%)810(Top 5%)810(Top 15%)
20K12.43 mi3.11 mi961-105912-104912-1041366(Top 5%)1305(Top 9%)1305(Top 25%)
Half13.11 mi0.68 mi988-27938-26938-261668(Top 6%)1598(Top 11%)1598(Top 30%)
25K15.53 mi2.42 mi1086-981031-931031-932168(Top 8%)2079(Top 14%)2079(Top 39%)
30K18.64 mi3.11 mi1290-2041232-2011232-2012865(Top 11%)2715(Top 18%)2715(Top 51%)
20M20.00 mi1.36 mi1359-691298-661298-662475(Top 9%)2346(Top 15%)2346(Top 44%)
21M21.00 mi1.00 mi1418-591354-561354-563245(Top 12%)3025(Top 20%)3025(Top 57%)
35K21.75 mi0.75 mi1454-361389-351389-352644(Top 10%)2487(Top 16%)2487(Top 47%)
23M23.00 mi1.25 mi1495-411427-381427-382858(Top 11%)2668(Top 18%)2668(Top 50%)
24M24.00 mi1.00 mi1536-411467-401467-403246(Top 12%)3001(Top 20%)3001(Top 57%)
40K24.85 mi0.85 mi1579-431509-421509-423491(Top 13%)3170(Top 21%)3170(Top 60%)
25.2M25.20 mi0.35 mi1602-231530-211530-214217(Top 16%)3687(Top 24%)3687(Top 70%)
Finish26.22 mi1.02 mi1711-1091635-1051635-1056145(Top 23%)5018(Top 33%)5018(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

857

Males

810

M18-39

810

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

821

Males

775

M18-39

775

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

857

Males

810

M18-39

810

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1366

Males

1305

M18-39

1305

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1668

Males

1598

M18-39

1598

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2168

Males

2079

M18-39

2079

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2865

Males

2715

M18-39

2715

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2475

Males

2346

M18-39

2346

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3245

Males

3025

M18-39

3025

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2644

Males

2487

M18-39

2487

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2858

Males

2668

M18-39

2668

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3246

Males

3001

M18-39

3001

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3491

Males

3170

M18-39

3170

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4217

Males

3687

M18-39

3687

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6145

Males

5018

M18-39

5018

Passing Analysis

Category:
Athletes Passed
198
Passed By
986
Net Change
-788
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#923
5K → 10K8220+62#923#861
10K → 15K2621+5#861#856
15K → 20K8113-105#856#961
20K → Half027-27#961#988
Half → 25K7105-98#988#1086
25K → 30K8212-204#1086#1290
30K → 20M776-69#1290#1359
20M → 21M968-59#1359#1418
21M → 35K541-36#1418#1454
35K → 23M1455-41#1454#1495
23M → 24M1354-41#1495#1536
24M → 40K1255-43#1536#1579
40K → 25.2M326-23#1579#1602
25.2M → Finish4113-109#1602#1711
TOTALS198986-788
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing