San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Erik Ko

Bib: 19576•M•Age: 46

San Mateo, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 6575
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Division (M45-49)
#0 / 220
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:51/mi
21:42
→ flat
4M
12:13/mi
46:08
↑ 67↓ 69
6M
13:15/mi
1:12:38
↑ 1231.1%
8M
13:21/mi
1:39:20
↑ 166↓ 531.1%
9.6M
13:21/mi
2:00:41
↑ 68↓ 1931.5%
10M
31:40/mi
2:13:20
↓ 241.1%
10.5M
5:58/mi
2:16:19
↓ 732.7%
12M
19:18/mi
2:45:16
↑ 2803.2%
Finish· 13.11 mi
13:36/mi
3:00:21
↑ 14↓ 891.3%

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.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:12:38
Pace12:06 /mi
2nd Half
Distance7.11 mi
Time1:47:43
Pace15:09 /mi
📊Positive Split: 48.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:11:1921:4210:5121:42
10:51
-
4M
4.00 mi07:35:4546:0811:3224:26
12:13
+1:22
6M
6.00 mi08:02:151:12:3812:0626:30
13:15
+1:02
8M
8.00 mi08:28:571:39:2012:2526:42
13:21
+0:06
9.6M
9.60 mi08:50:182:00:4112:3421:21
13:21
0:00
10M
10.00 mi09:02:572:13:2013:2012:39
31:40
+18:19
10.5M
10.50 mi09:05:562:16:1912:592:59
5:58
-25:42
12M
12.00 mi09:34:532:45:1613:4628:57
19:18
+13:20
Finish
13.11 mi09:49:583:00:2113:4515:05
13:36
-5:42

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

5:58 /mi

Average Pace

13:45 /mi

Slowest Pace

31:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59

2% of race

Time at Steady Pace

2:15:46

75% of race

Time at Slower Pace

41:36

23% of race

Average Pace: 13:45 /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
2M
2.00 mi07:11:1921:4210:5121:42
10:51
#4487
4M
4.00 mi07:35:4546:0811:3224:26
12:13
#5206
6M
6.00 mi08:02:151:12:3812:0626:30
13:15
#5551
8M
8.00 mi08:28:571:39:2012:2526:42
13:21
#5635
9.6M
9.60 mi08:50:182:00:4112:3421:21
13:21
#5910
10M
10.00 mi09:02:572:13:2013:2012:39
31:40
#6069
10.5M
10.50 mi09:05:562:16:1912:592:59
5:58
#6053
12M
12.00 mi09:34:532:45:1613:4628:57
19:18
#6072
Finish
13.11 mi09:49:583:00:2113:4515:05
13:36
#6059
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 96%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

15:38

Segment Time

17:23/mi

Pace

0.90 mi

Distance

Overall

6330

Men

3501

Division

205

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2M2.00 mi2.00 mi448728181585973(Top 91%)3354(Top 93%)202(Top 92%)
4M4.00 mi2.00 mi5206-7193131-313170-125628(Top 86%)3285(Top 91%)189(Top 86%)
6M6.00 mi2.00 mi5551-3453280-149186-166001(Top 91%)3439(Top 95%)198(Top 90%)
8M8.00 mi2.00 mi5635-843310-301865655(Top 86%)3309(Top 91%)200(Top 91%)
9.6M9.60 mi1.60 mi5910-2753402-92196-106362(Top 97%)3532(Top 98%)214(Top 97%)
10M10.00 mi0.40 mi6069-1593453-51202-66483(Top 99%)3566(Top 99%)216(Top 98%)
10.5M10.50 mi0.50 mi6053+163448+52025334(Top 81%)3110(Top 86%)185(Top 84%)
12M12.00 mi1.50 mi6072-193451-3203-15973(Top 91%)3354(Top 93%)202(Top 92%)
Finish13.11 mi1.11 mi6059+133443+8202+15831(Top 89%)3279(Top 91%)192(Top 87%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 91%
~flat
+5ft-3ft

Overall

5973

Males

3354

M45-49

202

2M→4M

2.0 - 4.0 mi

Top 86%
×4story building
+67ft-69ft

Overall

5628

Males

3285

M45-49

189

4M→6M

4.0 - 6.0 mi

Top 91%
×9story building
+123ft-9ft

Overall

6001

Males

3439

M45-49

198

6M→8M

6.0 - 8.0 mi

Top 86%
×12story building
+166ft-53ft

Overall

5655

Males

3309

M45-49

200

8M→9.6M

8.0 - 9.6 mi

Top 97%
×13story building
+68ft-193ft

Overall

6362

Males

3532

M45-49

214

9.6M→10M

9.6 - 10.0 mi

Top 99%
×2story building
+0ft-24ft

Overall

6483

Males

3566

M45-49

216

10M→10.5M

10.0 - 10.5 mi

Top 81%
×6story building
+1ft-73ft

Overall

5334

Males

3110

M45-49

185

10.5M→12M

10.5 - 12.0 mi

Top 91%
×21story building
+280ft-26ft

Overall

5973

Males

3354

M45-49

202

12M→Finish

12.0 - 13.1 mi

Top 89%
×7story building
+14ft-89ft

Overall

5831

Males

3279

M45-49

192

Passing Analysis

Category:
Athletes Passed
260*
Passed By
1832
Net Change
-1572
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4487
2M → 4M32751-719#4487#5206
4M → 6M45*390-345#5206#5551
6M → 8M79*163-84#5551#5635
8M → 9.6M11286-275#5635#5910
9.6M → 10M3162-159#5910#6069
10M → 10.5M171+16#6069#6053
10.5M → 12M39*58-19#6053#6072
12M → Finish34*21+13#6072#6059
TOTALS260*1832-1572

* 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

Race Place Events

Race Place Events