Jason Ma

Bib: 12497MAge: 25

South San Francisco, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4103
Top 48%
Gender (Male)
#0 / 2158
Division (M25-29)
#0 / 475
Race Day Weather
54°/44°F
overcast clouds

⏱️ Race Timeline

Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.2M
8:36/mi
18:54
→ flat
5.7M
10:47/mi
56:40
100780.1%
6.43M
14:16/mi
1:07:05
1473.8%
8.3M
8:04/mi
1:22:10
88530.3%
11.45M
10:53/mi
1:56:26
2933310.2%
FINISH· 13.11 mi
11:37/mi
2:15:43
61910.3%

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.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.2M
2.20 mi06:58:0618:548:3618:54
8:36
-
5.7M
5.70 mi07:35:5256:409:5737:46
10:47
+2:11
6.43M
6.43 mi07:46:171:07:0510:2610:25
14:16
+3:29
8.3M
8.30 mi08:01:221:22:109:5415:05
8:04
-6:12
11.45M
11.45 mi08:35:381:56:2610:1034:16
10:53
+2:49
FINISH
13.11 mi08:54:552:15:4310:2119:17
11:37
+0:44

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

8:04 /mi

Average Pace

10:21 /mi

Slowest Pace

14:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:59

25% of race

Time at Steady Pace

1:31:19

67% of race

Time at Slower Pace

10:25

8% of race

Average Pace: 10:21 /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...
0mi3.3mi6.6mi9.8mi13.1mi
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
2.2M
2.20 mi06:58:0618:548:3618:54
8:36
#2132
5.7M
5.70 mi07:35:5256:409:5737:46
10:47
#2112
6.43M
6.43 mi07:46:171:07:0510:2610:25
14:16
#2078
8.3M
8.30 mi08:01:221:22:109:5415:05
8:04
#2008
11.45M
11.45 mi08:35:381:56:2610:1034:16
10:53
#1979
FINISH
13.11 mi08:54:552:15:4310:2119:17
11:37
#1990
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2.2M2.20 mi2.20 mi213213233202132(Top 52%)1323(Top 61%)320(Top 67%)
5.7M5.70 mi3.50 mi2112+201330-7321-12119(Top 52%)1337(Top 62%)320(Top 67%)
6.43M6.43 mi0.73 mi2078+341313+17318+31990(Top 49%)1279(Top 59%)314(Top 66%)
8.3M8.30 mi1.87 mi2008+701275+38312+61699(Top 41%)1116(Top 52%)285(Top 60%)
11.45M11.45 mi3.15 mi1979+291262+13311+12026(Top 49%)1277(Top 59%)314(Top 66%)
FINISH13.11 mi1.66 mi1990-111261+1312-12138(Top 52%)1308(Top 61%)314(Top 66%)

Segment Performance Analysis

Start → 2.2M

0.0 - 2.2 mi

Top 52%
~flat
+6ft-3ft

Overall

2132

Males

1323

M25-29

321

2.2M→5.7M

2.2 - 5.7 mi

Top 52%
×5story building
+100ft-78ft

Overall

2119

Males

1337

M25-29

321

5.7M→6.43M

5.7 - 6.4 mi

Top 49%
×12story building
+147ft-0ft

Overall

1990

Males

1279

M25-29

315

6.43M→8.3M

6.4 - 8.3 mi

Top 41%
×4story building
+88ft-53ft

Overall

1699

Males

1116

M25-29

286

8.3M→11.45M

8.3 - 11.4 mi

Top 49%
×20story building
+293ft-331ft

Overall

2026

Males

1277

M25-29

314

11.45M→FINISH

11.4 - 13.1 mi

Top 52%
×7story building
+61ft-91ft

Overall

2138

Males

1308

M25-29

314

Passing Analysis

Category:
Athletes Passed
425*
Passed By
283
Net Change
+142
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2M----#2132
2.2M5.7M171151+20#2132#2112
5.7M6.43M5117+34#2112#2078
6.43M8.3M8010+70#2078#2008
8.3M11.45M83*54+29#2008#1979
11.45MFINISH40*51-11#1979#1990
TOTALS425*283+142

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon