Mason Blair

SF, CA

Bib: 24380 M 23

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 3840
Gender (Male)
#0 / 2065
M20-29
#0 / 190
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
48 ft elev
2M
11:01/mi
22:02
138680.7%
122 ft elev
4M
10:38/mi
43:17
1631.4%
280 ft elev
6M
13:32/mi
1:10:21
55830.3%
247 ft elev
8M
8:07/mi
1:26:35
651510.8%
143 ft elev
10M
10:53/mi
1:48:20
611741.1%
25 ft elev
12M
11:02/mi
2:10:24
41530.1%
12 ft elev
Finish· 13.11 mi
9:25/mi
2:20:51
→ flat
11 ft elev
Course Elevation
9292 ft
×24story building
548 ft climb · 587 ft descent

The Course

Half Splits

1st Half· via 6M
1:10:2111:44 /mi⚖️ balanced
2nd Half
1:10:309:55 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
22:0211:012.00 mi22:02
11:01
-
4M
43:1710:492.00 mi21:15
10:38
-0:23
6M
1:10:2111:442.00 mi27:04
13:32
+2:54
8M
1:26:3510:492.00 mi16:14
8:07
-5:25
10M
1:48:2010:502.00 mi21:45
10:53
+2:46
12M
2:10:2410:522.00 mi22:04
11:02
+0:09
Finish(13.11 mi)
2:20:5110:451.11 mi10:27
9:25
-1:37
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:07 /mi

Average Pace

10:45 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

26:41

19% of race

Time at Steady Pace

1:27:06

62% of race

Time at Slower Pace

27:04

19% of race

Average Pace: 10:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2844168016719421232119
4M2.00 mi2748+961653+27165+227021623166
6M2.00 mi2742+61647+6168-327141631169
8M2.00 mi2661+811611+36163+523281462151
10M2.00 mi2556+1051557+54158+521481357135
12M2.00 mi2415+1411493+64150+819421232119
Finish(13.11 mi)1.11 mi2298+1171435+58143+7123984485

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 51%
×9story building
+138ft-68ft

Overall

1942

Males

1232

M20-24

120

2M→4M

2.0 - 4.0 mi

Top 70%
×13story building
+163ft-19ft

Overall

2702

Males

1623

M20-24

166

4M→6M

4.0 - 6.0 mi

Top 71%
×4story building
+55ft-83ft

Overall

2714

Males

1631

M20-24

170

6M→8M

6.0 - 8.0 mi

Top 61%
×10story building
+65ft-151ft

Overall

2328

Males

1462

M20-24

152

8M→10M

8.0 - 10.0 mi

Top 56%
×10story building
+61ft-174ft

Overall

2148

Males

1357

M20-24

136

10M→12M

10.0 - 12.0 mi

Top 51%
×3story building
+41ft-53ft

Overall

1942

Males

1232

M20-24

120

12M→Finish

12.0 - 13.1 mi

Top 32%
×1human
+6ft-6ft

Overall

1239

Males

844

M20-24

85

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#2844
2M4M
60156+96
#2844 #2748
4M6M
6773+6
#2748 #2742
6M8M
687+81
#2742 #2661
8M10M
4109*+105
#2661 #2556
10M12M
1142+141
#2556 #2415
12MFinish
1118*+117
#2415 #2298
TOTALS
139685*+546
#2844 #2298

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

Passing Visualized

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