Boston Marathon logo
BOSTON MARATHON 2023

Stephen Rohan

Bib: 10556•M

CO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 34%
Masters (Masters Men)
#0 / 9891
Top 20%
Division (M45-49)
#0 / 2252
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
7:00/mi
21:46
↑ 97↓ 3451.5%
10K· 6.21 mi
6:52/mi
43:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:04:51
↑ 67↓ 78
20K· 12.43 mi
7:02/mi
1:26:41
↑ 106↓ 860.1%
Half· 13.11 mi
6:52/mi
1:31:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:11/mi
1:48:48
↑ 66↓ 880.2%
30K· 18.64 mi
7:17/mi
2:11:27
↑ 181↓ 1480.2%
20M
7:32/mi
2:21:41
↑ 64↓ 500.2%
21M
7:50/mi
2:29:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:34:53
↑ 17↓ 861.7%
23M
7:20/mi
2:44:04
↑ 23↓ 630.6%
24M
7:07/mi
2:51:11
↓ 821.3%
40K· 24.85 mi
7:08/mi
2:57:17
↓ 200.3%
25.2M
7:32/mi
2:59:53
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:06:55
↑ 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
Time1:31:22
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:35:33
Pace7:17 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5821:467:0021:46
7:00
-
10K
6.21 mi11:09:1943:076:5621:21
6:52
-0:08
15K
9.32 mi11:31:031:04:516:5721:44
7:00
+0:08
20K
12.43 mi11:52:531:26:416:5921:50
7:02
+0:02
Half
13.11 mi11:57:341:31:226:584:41
6:52
-0:10
25K
15.53 mi12:15:001:48:487:0017:26
7:11
+0:19
30K
18.64 mi12:37:392:11:277:0322:39
7:17
+0:06
20M
20.00 mi12:47:532:21:417:0510:14
7:32
+0:15
21M
21.00 mi12:55:432:29:317:077:50
7:50
+0:18
35K
21.75 mi13:01:052:34:537:075:22
7:10
-0:40
23M
23.00 mi13:10:162:44:047:089:11
7:20
+0:10
24M
24.00 mi13:17:232:51:117:087:07
7:07
-0:13
40K
24.85 mi13:23:292:57:177:086:06
7:08
+0:01
25.2M
25.20 mi13:26:052:59:537:082:36
7:32
+0:24
Finish
26.22 mi13:33:073:06:557:087:02
6:54
-0:38

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

6:52 /mi

Average Pace

7:08 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:05

96% of race

Time at Steady Pace

7:50

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi10:47:5821:467:0021:46
7:00
#6275
10K
6.21 mi11:09:1943:076:5621:21
6:52
#6118
15K
9.32 mi11:31:031:04:516:5721:44
7:00
#6239
20K
12.43 mi11:52:531:26:416:5921:50
7:02
#6192
Half
13.11 mi11:57:341:31:226:584:41
6:52
#6172
25K
15.53 mi12:15:001:48:487:0017:26
7:11
#6238
30K
18.64 mi12:37:392:11:277:0322:39
7:17
#6137
20M
20.00 mi12:47:532:21:417:0510:14
7:32
#6136
21M
21.00 mi12:55:432:29:317:077:50
7:50
#6117
35K
21.75 mi13:01:052:34:537:075:22
7:10
#6093
23M
23.00 mi13:10:162:44:047:089:11
7:20
#6001
24M
24.00 mi13:17:232:51:117:087:07
7:07
#5916
40K
24.85 mi13:23:292:57:177:086:06
7:08
#5827
25.2M
25.20 mi13:26:052:59:537:082:36
7:32
#5769
Finish
26.22 mi13:33:073:06:557:087:02
6:54
#5676
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6275571657166517(Top 24%)5871(Top 39%)5871(Top 261%)
10K6.21 mi3.10 mi6118+1575576+1405576+1405925(Top 22%)5405(Top 36%)5405(Top 240%)
15K9.32 mi3.11 mi6239-1215663-875663-876517(Top 24%)5871(Top 39%)5871(Top 261%)
20K12.43 mi3.11 mi6192+475622+415622+416144(Top 23%)5580(Top 37%)5580(Top 248%)
Half13.11 mi0.68 mi6172+205613+95613+95760(Top 22%)5292(Top 35%)5292(Top 235%)
25K15.53 mi2.42 mi6238-665657-445657-446612(Top 25%)5867(Top 39%)5867(Top 261%)
30K18.64 mi3.11 mi6137+1015568+895568+895961(Top 22%)5344(Top 35%)5344(Top 237%)
20M20.00 mi1.36 mi6136+15552+165552+166962(Top 26%)5940(Top 39%)5940(Top 264%)
21M21.00 mi1.00 mi6117+195527+255527+256323(Top 24%)5427(Top 36%)5427(Top 241%)
35K21.75 mi0.75 mi6093+245505+225505+226313(Top 24%)5441(Top 36%)5441(Top 242%)
23M23.00 mi1.25 mi6001+925419+865419+865488(Top 21%)4825(Top 32%)4825(Top 214%)
24M24.00 mi1.00 mi5916+855344+755344+755281(Top 20%)4626(Top 30%)4626(Top 205%)
40K24.85 mi0.85 mi5827+895267+775267+774544(Top 17%)4026(Top 27%)4026(Top 179%)
25.2M25.20 mi0.35 mi5769+585214+535214+534095(Top 15%)3637(Top 24%)3637(Top 162%)
Finish26.22 mi1.02 mi5676+935131+835131+834635(Top 17%)4024(Top 27%)4024(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6517

Males

5871

M45-49

5871

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

5925

Males

5405

M45-49

5405

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6517

Males

5871

M45-49

5871

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6144

Males

5580

M45-49

5580

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5760

Males

5292

M45-49

5292

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

6612

Males

5867

M45-49

5867

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5961

Males

5344

M45-49

5344

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6962

Males

5940

M45-49

5940

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6323

Males

5427

M45-49

5427

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6313

Males

5441

M45-49

5441

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5488

Males

4825

M45-49

4825

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5281

Males

4626

M45-49

4626

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4544

Males

4026

M45-49

4026

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4095

Males

3637

M45-49

3637

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4635

Males

4024

M45-49

4024

Passing Analysis

Category:
Athletes Passed
1363
Passed By
764
Net Change
+599
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6275
5K → 10K272115+157#6275#6118
10K → 15K75196-121#6118#6239
15K → 20K11568+47#6239#6192
20K → Half3515+20#6192#6172
Half → 25K55121-66#6172#6238
25K → 30K16362+101#6238#6137
30K → 20M6564+1#6137#6136
20M → 21M5738+19#6136#6117
21M → 35K4420+24#6117#6093
35K → 23M11321+92#6093#6001
23M → 24M9914+85#6001#5916
24M → 40K978+89#5916#5827
40K → 25.2M580+58#5827#5769
25.2M → Finish11522+93#5769#5676
TOTALS1363764+599
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing