Boston Marathon logo
BOSTON MARATHON 2023

Markos Iordanopoulos

Bib: 18756•M

AZ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:37
Rank: #13440
Start → 5K
24:37 | 7:55/mi
10K· 6.21 mi
49:15
Rank: #13783 (-343)
5K → 10K
24:38 | 7:56/mi
15K· 9.32 mi
1:15:13
Rank: #14898 (-1115)
10K → 15K
25:58 | 8:21/mi
20K· 12.43 mi
1:40:18
Rank: #14657 (+241)
15K → 20K
25:05 | 8:04/mi
Half· 13.11 mi
1:45:47
Rank: #14640 (+17)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:05:44
Rank: #14598 (+42)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:32:15
Rank: #14570 (+28)
25K → 30K
26:31 | 8:32/mi
20M
2:43:52
Rank: #14501 (+69)
30K → 20M
11:37 | 8:33/mi
21M
2:52:57
Rank: #14456 (+45)
20M → 21M
9:05 | 9:05/mi
35K· 21.75 mi
2:59:08
Rank: #14431 (+25)
21M → 35K
6:11 | 8:16/mi
23M
3:09:44
Rank: #14322 (+109)
35K → 23M
10:36 | 8:28/mi
24M
3:18:19
Rank: #14335 (-13)
23M → 24M
8:35 | 8:35/mi
40K· 24.85 mi
3:25:43
Rank: #14320 (+15)
24M → 40K
7:24 | 8:39/mi
25.2M
3:28:56
Rank: #14314 (+6)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:37:13
Rank: #14244 (+70)
25.2M → Finish
8:17 | 8:08/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
Time1:45:47
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:51:26
Pace8:30 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1824:377:5524:37
7:55
-
10K
6.21 mi11:43:5649:157:5624:38
7:56
+0:01
15K
9.32 mi12:09:541:15:138:0425:58
8:21
+0:25
20K
12.43 mi12:34:591:40:188:0425:05
8:04
-0:17
Half
13.11 mi12:40:281:45:478:045:29
8:02
-0:02
25K
15.53 mi13:00:252:05:448:0619:57
8:14
+0:12
30K
18.64 mi13:26:562:32:158:1026:31
8:32
+0:18
20M
20.00 mi13:38:332:43:528:1211:37
8:33
+0:01
21M
21.00 mi13:47:382:52:578:149:05
9:05
+0:32
35K
21.75 mi13:53:492:59:088:146:11
8:16
-0:49
23M
23.00 mi14:04:253:09:448:1510:36
8:28
+0:12
24M
24.00 mi14:13:003:18:198:168:35
8:35
+0:07
40K
24.85 mi14:20:243:25:438:177:24
8:39
+0:04
25.2M
25.20 mi14:23:373:28:568:173:13
9:20
+0:41
Finish
26.22 mi14:31:543:37:138:178:17
8:08
-1:12

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

7:55 /mi

Average Pace

8:17 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:55

94% of race

Time at Steady Pace

12:18

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:19:1824:377:5524:37
7:55
#13440
10K
6.21 mi11:43:5649:157:5624:38
7:56
#13783
15K
9.32 mi12:09:541:15:138:0425:58
8:21
#14898
20K
12.43 mi12:34:591:40:188:0425:05
8:04
#14657
Half
13.11 mi12:40:281:45:478:045:29
8:02
#14640
25K
15.53 mi13:00:252:05:448:0619:57
8:14
#14598
30K
18.64 mi13:26:562:32:158:1026:31
8:32
#14570
20M
20.00 mi13:38:332:43:528:1211:37
8:33
#14501
21M
21.00 mi13:47:382:52:578:149:05
9:05
#14456
35K
21.75 mi13:53:492:59:088:146:11
8:16
#14431
23M
23.00 mi14:04:253:09:448:1510:36
8:28
#14322
24M
24.00 mi14:13:003:18:198:168:35
8:35
#14335
40K
24.85 mi14:20:243:25:438:177:24
8:39
#14320
25.2M
25.20 mi14:23:373:28:568:173:13
9:20
#14314
Finish
26.22 mi14:31:543:37:138:178:17
8:08
#14244
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi134409738973816889(Top 63%)11022(Top 73%)11022(Top 775%)
10K6.21 mi3.10 mi13783-3439847-1099847-10914223(Top 53%)10013(Top 66%)10013(Top 704%)
15K9.32 mi3.11 mi14898-111510281-43410281-43416889(Top 63%)11022(Top 73%)11022(Top 775%)
20K12.43 mi3.11 mi14657+24110171+11010171+11014037(Top 53%)9892(Top 65%)9892(Top 696%)
Half13.11 mi0.68 mi14640+1710166+510166+514614(Top 55%)10134(Top 67%)10134(Top 713%)
25K15.53 mi2.42 mi14598+4210113+5310113+5314422(Top 54%)9937(Top 65%)9937(Top 699%)
30K18.64 mi3.11 mi14570+2810067+4610067+4614515(Top 55%)9864(Top 65%)9864(Top 694%)
20M20.00 mi1.36 mi14501+6910012+5510012+5513912(Top 52%)9537(Top 63%)9537(Top 671%)
21M21.00 mi1.00 mi14456+459969+439969+4313864(Top 52%)9427(Top 62%)9427(Top 663%)
35K21.75 mi0.75 mi14431+259950+199950+1913872(Top 52%)9361(Top 62%)9361(Top 658%)
23M23.00 mi1.25 mi14322+1099875+759875+7512983(Top 49%)8910(Top 59%)8910(Top 627%)
24M24.00 mi1.00 mi14335-139870+59870+514941(Top 56%)9719(Top 64%)9719(Top 683%)
40K24.85 mi0.85 mi14320+159833+379833+3714253(Top 54%)9352(Top 62%)9352(Top 658%)
25.2M25.20 mi0.35 mi14314+69825+89825+814263(Top 54%)9356(Top 62%)9356(Top 658%)
Finish26.22 mi1.02 mi14244+709772+539772+5312950(Top 49%)8747(Top 58%)8747(Top 615%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16889

Males

11022

M55-59

11022

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14223

Males

10013

M55-59

10013

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16889

Males

11022

M55-59

11022

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14037

Males

9892

M55-59

9892

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14614

Males

10134

M55-59

10134

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14422

Males

9937

M55-59

9937

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14515

Males

9864

M55-59

9864

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13912

Males

9537

M55-59

9537

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

13864

Males

9427

M55-59

9427

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13872

Males

9361

M55-59

9361

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

12983

Males

8910

M55-59

8910

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14941

Males

9719

M55-59

9719

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14253

Males

9352

M55-59

9352

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14263

Males

9356

M55-59

9356

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12950

Males

8747

M55-59

8747

Passing Analysis

Category:
Athletes Passed
1566
Passed By
2370
Net Change
-804
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13440
5K → 10K155498-343#13440#13783
10K → 15K211136-1115#13783#14898
15K → 20K31473+241#14898#14657
20K → Half4023+17#14657#14640
Half → 25K169127+42#14640#14598
25K → 30K175147+28#14598#14570
30K → 20M11950+69#14570#14501
20M → 21M10863+45#14501#14456
21M → 35K5429+25#14456#14431
35K → 23M14435+109#14431#14322
23M → 24M6982-13#14322#14335
24M → 40K6954+15#14335#14320
40K → 25.2M3024+6#14320#14314
25.2M → Finish9929+70#14314#14244
TOTALS15662370-804
📊

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