Boston Marathon logo
BOSTON MARATHON 2023

Guillermo Ortega Simon

Bib: 31609•M

TX

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
10:42/mi
33:15
↑ 97↓ 3451.5%
10K· 6.21 mi
11:18/mi
1:08:21
↑ 79↓ 1380.4%
15K· 9.32 mi
11:33/mi
1:44:14
↑ 67↓ 78
20K· 12.43 mi
12:29/mi
2:23:02
↑ 106↓ 860.1%
Half· 13.11 mi
12:29/mi
2:31:33
↑ 19↓ 370.5%
25K· 15.53 mi
14:34/mi
3:06:51
↑ 66↓ 880.2%
30K· 18.64 mi
13:52/mi
3:49:56
↑ 181↓ 1480.2%
20M
15:59/mi
4:11:39
↑ 64↓ 500.2%
21M
15:59/mi
4:27:37
↑ 106↓ 241.6%
35K· 21.75 mi
12:54/mi
4:37:16
↑ 17↓ 861.7%
23M
14:29/mi
4:55:24
↑ 23↓ 630.6%
24M
15:42/mi
5:11:06
↓ 821.3%
40K· 24.85 mi
12:46/mi
5:22:01
↓ 200.3%
25.2M
18:51/mi
5:28:31
↑ 13↓ 160.2%
Finish· 26.22 mi
13:01/mi
5:41:47
↑ 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
Time2:31:33
Pace11:34 /mi
2nd Half
Distance13.11 mi
Time3:10:14
Pace14:31 /mi
📊Positive Split: 25.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2933:1510:4233:15
10:42
-
10K
6.21 mi12:27:351:08:2111:0035:06
11:18
+0:36
15K
9.32 mi13:03:281:44:1411:1135:53
11:33
+0:15
20K
12.43 mi13:42:162:23:0211:3138:48
12:29
+0:56
Half
13.11 mi13:50:472:31:3311:348:31
12:29
0:00
25K
15.53 mi14:26:053:06:5112:0235:18
14:34
+2:05
30K
18.64 mi15:09:103:49:5612:2043:05
13:52
-0:42
20M
20.00 mi15:30:534:11:3912:3521:43
15:59
+2:07
21M
21.00 mi15:46:514:27:3712:4515:58
15:59
0:00
35K
21.75 mi15:56:304:37:1612:459:39
12:54
-3:05
23M
23.00 mi16:14:384:55:2412:5118:08
14:29
+1:35
24M
24.00 mi16:30:205:11:0612:5815:42
15:42
+1:13
40K
24.85 mi16:41:155:22:0112:5710:55
12:46
-2:56
25.2M
25.20 mi16:47:455:28:3113:026:30
18:51
+6:05
Finish
26.22 mi17:01:015:41:4713:0313:16
13:01
-5:50

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

10:42 /mi

Average Pace

13:03 /mi

Slowest Pace

18:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:14

30% of race

Time at Steady Pace

2:04:14

36% of race

Time at Slower Pace

1:53:19

33% of race

Average Pace: 13:02 /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 mi11:52:2933:1510:4233:15
10:42
#25189
10K
6.21 mi12:27:351:08:2111:0035:06
11:18
#25600
15K
9.32 mi13:03:281:44:1411:1135:53
11:33
#25680
20K
12.43 mi13:42:162:23:0211:3138:48
12:29
#25805
Half
13.11 mi13:50:472:31:3311:348:31
12:29
#25839
25K
15.53 mi14:26:053:06:5112:0235:18
14:34
#26030
30K
18.64 mi15:09:103:49:5612:2043:05
13:52
#26036
20M
20.00 mi15:30:534:11:3912:3521:43
15:59
#26114
21M
21.00 mi15:46:514:27:3712:4515:58
15:59
#26131
35K
21.75 mi15:56:304:37:1612:459:39
12:54
#26116
23M
23.00 mi16:14:384:55:2412:5118:08
14:29
#26130
24M
24.00 mi16:30:205:11:0612:5815:42
15:42
#26173
40K
24.85 mi16:41:155:22:0112:5710:55
12:46
#26139
25.2M
25.20 mi16:47:455:28:3113:026:30
18:51
#26170
Finish
26.22 mi17:01:015:41:4713:0313:16
13:01
#26173
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi25189146291462925752(Top 97%)14837(Top 98%)14837(Top 723%)
10K6.21 mi3.10 mi25600-41114781-15214781-15225787(Top 97%)14862(Top 98%)14862(Top 724%)
15K9.32 mi3.11 mi25680-8014814-3314814-3325752(Top 97%)14837(Top 98%)14837(Top 723%)
20K12.43 mi3.11 mi25805-12514854-4014854-4025958(Top 98%)14906(Top 98%)14906(Top 726%)
Half13.11 mi0.68 mi25839-3414872-1814872-1826160(Top 98%)14980(Top 99%)14980(Top 730%)
25K15.53 mi2.42 mi26030-19114944-7214944-7226485(Top 99%)15114(Top 100%)15114(Top 737%)
30K18.64 mi3.11 mi26036-614938+614938+625963(Top 98%)14858(Top 98%)14858(Top 724%)
20M20.00 mi1.36 mi26114-7814965-2714965-2726481(Top 99%)15099(Top 99%)15099(Top 736%)
21M21.00 mi1.00 mi26131-1714971-614971-626214(Top 98%)14963(Top 99%)14963(Top 729%)
35K21.75 mi0.75 mi26116+1514960+1114960+1125491(Top 96%)14571(Top 96%)14571(Top 710%)
23M23.00 mi1.25 mi26130-1414964-414964-426111(Top 98%)14896(Top 98%)14896(Top 726%)
24M24.00 mi1.00 mi26173-4314980-1614980-1626491(Top 100%)15097(Top 99%)15097(Top 736%)
40K24.85 mi0.85 mi26139+3414963+1714963+1724745(Top 93%)14180(Top 93%)14180(Top 691%)
25.2M25.20 mi0.35 mi26170-3114980-1714980-1726555(Top 100%)15134(Top 100%)15134(Top 738%)
Finish26.22 mi1.02 mi26173-314979+114979+125978(Top 98%)14799(Top 98%)14799(Top 721%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25752

Males

14837

M50-54

14837

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25787

Males

14862

M50-54

14862

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25752

Males

14837

M50-54

14837

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

25958

Males

14906

M50-54

14906

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26160

Males

14980

M50-54

14980

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26485

Males

15114

M50-54

15114

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

25963

Males

14858

M50-54

14858

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26481

Males

15099

M50-54

15099

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

26214

Males

14963

M50-54

14963

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25491

Males

14571

M50-54

14571

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26111

Males

14896

M50-54

14896

23M→24M

23.0 - 24.0 mi

Top 100%
×6story building
+12ft-82ft

Overall

26491

Males

15097

M50-54

15097

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24745

Males

14180

M50-54

14180

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26555

Males

15134

M50-54

15134

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

25978

Males

14799

M50-54

14799

Passing Analysis

Category:
Athletes Passed
276
Passed By
1260
Net Change
-984
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25189
5K → 10K38449-411#25189#25600
10K → 15K63143-80#25600#25680
15K → 20K37162-125#25680#25805
20K → Half438-34#25805#25839
Half → 25K5196-191#25839#26030
25K → 30K4551-6#26030#26036
30K → 20M381-78#26036#26114
20M → 21M1128-17#26114#26131
21M → 35K194+15#26131#26116
35K → 23M620-14#26116#26130
23M → 24M144-43#26130#26173
24M → 40K373+34#26173#26139
40K → 25.2M031-31#26139#26170
25.2M → Finish710-3#26170#26173
TOTALS2761260-984
📊

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