Boston Marathon logo
BOSTON MARATHON 2023

Doug Sulkala

Bib: 25044•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
9:49/mi
30:30
↑ 97↓ 3451.5%
10K· 6.21 mi
10:11/mi
1:02:08
↑ 79↓ 1380.4%
15K· 9.32 mi
10:38/mi
1:35:10
↑ 67↓ 78
20K· 12.43 mi
11:26/mi
2:10:40
↑ 106↓ 860.1%
Half· 13.11 mi
11:11/mi
2:18:18
↑ 19↓ 370.5%
25K· 15.53 mi
12:08/mi
2:47:42
↑ 66↓ 880.2%
30K· 18.64 mi
12:01/mi
3:25:01
↑ 181↓ 1480.2%
20M
12:24/mi
3:41:52
↑ 64↓ 500.2%
21M
12:52/mi
3:54:44
↑ 106↓ 241.6%
35K· 21.75 mi
11:24/mi
4:03:16
↑ 17↓ 861.7%
23M
12:10/mi
4:18:30
↑ 23↓ 630.6%
24M
11:49/mi
4:30:19
↓ 821.3%
40K· 24.85 mi
12:32/mi
4:41:02
↓ 200.3%
25.2M
11:24/mi
4:44:58
↑ 13↓ 160.2%
Finish· 26.22 mi
11:07/mi
4:56:18
↑ 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
Time2:18:18
Pace10:33 /mi
2nd Half
Distance13.11 mi
Time2:38:00
Pace12:03 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0330:309:4930:30
9:49
-
10K
6.21 mi12:17:411:02:0810:0031:38
10:11
+0:22
15K
9.32 mi12:50:431:35:1010:1333:02
10:38
+0:27
20K
12.43 mi13:26:132:10:4010:3135:30
11:26
+0:48
Half
13.11 mi13:33:512:18:1810:337:38
11:11
-0:15
25K
15.53 mi14:03:152:47:4210:4829:24
12:08
+0:57
30K
18.64 mi14:40:343:25:0111:0037:19
12:01
-0:07
20M
20.00 mi14:57:253:41:5211:0616:51
12:24
+0:23
21M
21.00 mi15:10:173:54:4411:1112:52
12:52
+0:28
35K
21.75 mi15:18:494:03:1611:118:32
11:24
-1:28
23M
23.00 mi15:34:034:18:3011:1415:14
12:10
+0:46
24M
24.00 mi15:45:524:30:1911:1611:49
11:49
-0:21
40K
24.85 mi15:56:354:41:0211:1810:43
12:32
+0:43
25.2M
25.20 mi16:00:314:44:5811:183:56
11:24
-1:08
Finish
26.22 mi16:11:514:56:1811:1911:20
11:07
-0:17

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

9:49 /mi

Average Pace

11:19 /mi

Slowest Pace

12:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:10

32% of race

Time at Steady Pace

1:18:45

27% of race

Time at Slower Pace

2:02:23

41% of race

Average Pace: 11:18 /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 mi11:46:0330:309:4930:30
9:49
#22967
10K
6.21 mi12:17:411:02:0810:0031:38
10:11
#23622
15K
9.32 mi12:50:431:35:1010:1333:02
10:38
#24031
20K
12.43 mi13:26:132:10:4010:3135:30
11:26
#24440
Half
13.11 mi13:33:512:18:1810:337:38
11:11
#24488
25K
15.53 mi14:03:152:47:4210:4829:24
12:08
#24704
30K
18.64 mi14:40:343:25:0111:0037:19
12:01
#24667
20M
20.00 mi14:57:253:41:5211:0616:51
12:24
#24673
21M
21.00 mi15:10:173:54:4411:1112:52
12:52
#24660
35K
21.75 mi15:18:494:03:1611:118:32
11:24
#24636
23M
23.00 mi15:34:034:18:3011:1415:14
12:10
#24615
24M
24.00 mi15:45:524:30:1911:1611:49
11:49
#24603
40K
24.85 mi15:56:354:41:0211:1810:43
12:32
#24614
25.2M
25.20 mi16:00:314:44:5811:183:56
11:24
#24581
Finish
26.22 mi16:11:514:56:1811:1911:20
11:07
#24589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22967135741357424685(Top 93%)14379(Top 95%)14379(Top 701%)
10K6.21 mi3.10 mi23622-65513911-33713911-33724084(Top 90%)14130(Top 93%)14130(Top 689%)
15K9.32 mi3.11 mi24031-40914101-19014101-19024685(Top 93%)14379(Top 95%)14379(Top 701%)
20K12.43 mi3.11 mi24440-40914281-18014281-18025159(Top 95%)14561(Top 96%)14561(Top 710%)
Half13.11 mi0.68 mi24488-4814292-1114292-1125181(Top 95%)14559(Top 96%)14559(Top 710%)
25K15.53 mi2.42 mi24704-21614380-8814380-8825255(Top 95%)14575(Top 96%)14575(Top 710%)
30K18.64 mi3.11 mi24667+3714353+2714353+2724508(Top 92%)14202(Top 94%)14202(Top 692%)
20M20.00 mi1.36 mi24673-614344+914344+924629(Top 93%)14196(Top 94%)14196(Top 692%)
21M21.00 mi1.00 mi24660+1314334+1014334+1023930(Top 90%)13862(Top 91%)13862(Top 676%)
35K21.75 mi0.75 mi24636+2414311+2314311+2323972(Top 90%)13835(Top 91%)13835(Top 674%)
23M23.00 mi1.25 mi24615+2114297+1414297+1424206(Top 91%)13948(Top 92%)13948(Top 680%)
24M24.00 mi1.00 mi24603+1214280+1714280+1724289(Top 91%)13945(Top 92%)13945(Top 680%)
40K24.85 mi0.85 mi24614-1114273+714273+724483(Top 92%)14035(Top 92%)14035(Top 684%)
25.2M25.20 mi0.35 mi24581+3314253+2014253+2021352(Top 80%)12559(Top 83%)12559(Top 612%)
Finish26.22 mi1.02 mi24589-814257-414257-424173(Top 91%)13916(Top 92%)13916(Top 678%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

24685

Males

14379

M50-54

14379

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

24084

Males

14130

M50-54

14130

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

24685

Males

14379

M50-54

14379

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25159

Males

14561

M50-54

14561

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25181

Males

14559

M50-54

14559

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25255

Males

14575

M50-54

14575

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24508

Males

14202

M50-54

14202

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24629

Males

14196

M50-54

14196

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

23930

Males

13862

M50-54

13862

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23972

Males

13835

M50-54

13835

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24206

Males

13948

M50-54

13948

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24289

Males

13945

M50-54

13945

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24483

Males

14035

M50-54

14035

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21352

Males

12559

M50-54

12559

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24173

Males

13916

M50-54

13916

Passing Analysis

Category:
Athletes Passed
506
Passed By
2128
Net Change
-1622
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22967
5K → 10K36691-655#22967#23622
10K → 15K23432-409#23622#24031
15K → 20K26435-409#24031#24440
20K → Half1260-48#24440#24488
Half → 25K22238-216#24488#24704
25K → 30K10972+37#24704#24667
30K → 20M4753-6#24667#24673
20M → 21M3320+13#24673#24660
21M → 35K3410+24#24660#24636
35K → 23M5332+21#24636#24615
23M → 24M3321+12#24615#24603
24M → 40K2536-11#24603#24614
40K → 25.2M341+33#24614#24581
25.2M → Finish1927-8#24581#24589
TOTALS5062128-1622
📊

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