San Francisco Marathon logo
SF MARATHON 2026

Chihak Ahn

Bib: 1468•M•Age: 52

Fremont, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 7166
Top 10%
Gender (Male)
#0 / 5052
Top 12%
Masters (Masters Men)
#0 / 1321
Top 9%
Division (M50-54)
#0 / 245
Top 10%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
13:44
Rank: #166
Start → 2M
13:44 | 6:52/mi
4M
27:38
Rank: #160 (+6)
2M → 4M
13:54 | 6:57/mi
6M
41:29
Rank: #160
4M → 6M
13:51 | 6:55/mi
8M
55:39
Rank: #172 (-12)
6M → 8M
14:10 | 7:05/mi
9.6M
1:07:22
Rank: #169 (+3)
8M → 9.6M
11:43 | 7:19/mi
10M
1:09:22
Rank: #172 (-3)
9.6M → 10M
2:00 | 5:00/mi
10.5M
1:14:03
Rank: #176 (-4)
10M → 10.5M
4:41 | 9:22/mi
12M
1:25:02
Rank: #208 (-32)
10.5M → 12M
10:59 | 7:19/mi
14M
1:40:56
Rank: #216 (-8)
12M → 14M
15:54 | 7:57/mi
16M
1:53:20
Rank: #199 (+17)
14M → 16M
12:24 | 6:12/mi
18M
2:12:13
Rank: #269 (-70)
16M → 18M
18:53 | 9:27/mi
20M
2:28:32
Rank: #281 (-12)
18M → 20M
16:19 | 8:09/mi
22M
2:46:30
Rank: #361 (-80)
20M → 22M
17:58 | 8:59/mi
24M
3:10:27
Rank: #515 (-154)
22M → 24M
23:57 | 11:59/mi
Finish· 26.22 mi
3:36:05
Rank: #709 (-194)
24M → Finish
25:38 | 11:33/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 14MFaster
Distance14.00 mi
Time1:40:56
Pace7:13 /mi
2nd Half
Distance12.22 mi
Time1:55:09
Pace9:25 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:29:2113:446:5213:44
6:52
-
4M
4.00 mi05:43:1527:386:5513:54
6:57
+0:05
6M
6.00 mi05:57:0641:296:5513:51
6:55
-0:02
8M
8.00 mi06:11:1655:396:5714:10
7:05
+0:10
9.6M
9.60 mi06:22:591:07:227:0111:43
7:19
+0:14
10M
10.00 mi06:24:591:09:226:562:00
5:00
-2:19
10.5M
10.50 mi06:29:401:14:037:034:41
9:22
+4:22
12M
12.00 mi06:40:391:25:027:0510:59
7:19
-2:03
14M
14.00 mi06:56:331:40:567:1315:54
7:57
+0:38
16M
16.00 mi07:08:571:53:207:0512:24
6:12
-1:45
18M
18.00 mi07:27:502:12:137:2118:53
9:27
+3:15
20M
20.00 mi07:44:092:28:327:2616:19
8:09
-1:18
22M
22.00 mi08:02:072:46:307:3417:58
8:59
+0:50
24M
24.00 mi08:26:043:10:277:5623:57
11:59
+3:00
Finish
26.22 mi08:51:423:36:058:1525:38
11:33
-0:26

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

5:00 /mi

Average Pace

8:15 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:24

7% of race

Time at Steady Pace

1:50:34

51% of race

Time at Slower Pace

1:31:07

42% of race

Average Pace: 8:14 /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
2M
2.00 mi05:29:2113:446:5213:44
6:52
#166
4M
4.00 mi05:43:1527:386:5513:54
6:57
#160
6M
6.00 mi05:57:0641:296:5513:51
6:55
#160
8M
8.00 mi06:11:1655:396:5714:10
7:05
#172
9.6M
9.60 mi06:22:591:07:227:0111:43
7:19
#169
10M
10.00 mi06:24:591:09:226:562:00
5:00
#172
10.5M
10.50 mi06:29:401:14:037:034:41
9:22
#176
12M
12.00 mi06:40:391:25:027:0510:59
7:19
#208
14M
14.00 mi06:56:331:40:567:1315:54
7:57
#216
16M
16.00 mi07:08:571:53:207:0512:24
6:12
#199
18M
18.00 mi07:27:502:12:137:2118:53
9:27
#269
20M
20.00 mi07:44:092:28:327:2616:19
8:09
#281
22M
22.00 mi08:02:072:46:307:3417:58
8:59
#361
24M
24.00 mi08:26:043:10:277:5623:57
11:59
#515
Finish
26.22 mi08:51:423:36:058:1525:38
11:33
#709
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 3%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

6:41

Segment Time

7:26/mi

Pace

0.90 mi

Distance

Overall

232

Men

219

Division

3

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
2M2.00 mi2.00 mi1661581513(Top 7%)473(Top 9%)9(Top 4%)
4M4.00 mi2.00 mi160+6153+51170(Top 2%)163(Top 3%)1(Top 0.4%)
6M6.00 mi2.00 mi1601531174(Top 2%)166(Top 3%)1(Top 0.4%)
8M8.00 mi2.00 mi172-12165-121252(Top 4%)235(Top 5%)2(Top 0.8%)
9.6M9.60 mi1.60 mi169+3162+31192(Top 3%)181(Top 4%)1(Top 0.4%)
10M10.00 mi0.40 mi172-3165-31261(Top 4%)245(Top 5%)6(Top 2%)
10.5M10.50 mi0.50 mi176-4168-31253(Top 4%)236(Top 5%)4(Top 2%)
12M12.00 mi1.50 mi208-32198-302-1513(Top 7%)473(Top 9%)9(Top 4%)
14M14.00 mi2.00 mi216-8205-72356(Top 5%)330(Top 7%)6(Top 2%)
16M16.00 mi2.00 mi199+17190+152309(Top 4%)282(Top 6%)6(Top 2%)
18M18.00 mi2.00 mi269-70254-644-21645(Top 23%)1378(Top 27%)52(Top 21%)
20M20.00 mi2.00 mi281-12264-105-1643(Top 9%)573(Top 11%)23(Top 9%)
22M22.00 mi2.00 mi361-80333-697-21992(Top 28%)1590(Top 31%)74(Top 30%)
24M24.00 mi2.00 mi515-154462-12912-53848(Top 54%)2789(Top 55%)141(Top 58%)
Finish26.22 mi2.22 mi709-194624-16224-124106(Top 57%)2967(Top 59%)140(Top 57%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 7%
×1human
+6ft-11ft

Overall

513

Males

473

M50-54

9

2M→4M

2.0 - 4.0 mi

Top 2%
×4stories
+75ft-70ft

Overall

170

Males

163

M50-54

2

4M→6M

4.0 - 6.0 mi

Top 2%
×5stories
+71ft-18ft

Overall

174

Males

166

M50-54

2

6M→8M

6.0 - 8.0 mi

Top 4%
×9stories
+106ft-21ft

Overall

252

Males

235

M50-54

3

8M→9.6M

8.0 - 9.6 mi

Top 3%
×13stories
+117ft-177ft

Overall

192

Males

181

M50-54

1

9.6M→10M

9.6 - 10.0 mi

Top 4%
×1story
+17ft-12ft

Overall

261

Males

245

M50-54

7

10M→10.5M

10.0 - 10.5 mi

Top 4%
×9stories
+0ft-102ft

Overall

253

Males

236

M50-54

4

10.5M→12M

10.5 - 12.0 mi

Top 7%
×18stories
+304ft-125ft

Overall

513

Males

473

M50-54

9

12M→14M

12.0 - 14.0 mi

Top 5%
×9stories
+99ft-125ft

Overall

356

Males

330

M50-54

6

14M→16M

14.0 - 16.0 mi

Top 4%
×9stories
+124ft-78ft

Overall

309

Males

282

M50-54

6

16M→18M

16.0 - 18.0 mi

Top 23%
×8stories
+106ft-45ft

Overall

1645

Males

1378

M50-54

52

18M→20M

18.0 - 20.0 mi

Top 9%
×3stories
+52ft-26ft

Overall

643

Males

573

M50-54

23

20M→22M

20.0 - 22.0 mi

Top 28%
×21stories
+17ft-266ft

Overall

1992

Males

1590

M50-54

74

22M→24M

22.0 - 24.0 mi

Top 54%
×3stories
+70ft-85ft

Overall

3848

Males

2789

M50-54

141

24M→Finish

24.0 - 26.2 mi

Top 57%
~flat
+2ft-2ft

Overall

4106

Males

2967

M50-54

140

Passing Analysis

Category:
Athletes Passed
61*
Passed By
604
Net Change
-543
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#166
2M → 4M115+6#166#160
4M → 6M440#160#160
6M → 8M214-12#160#172
8M → 9.6M41+3#172#169
9.6M → 10M03-3#169#172
10M → 10.5M04-4#172#176
10.5M → 12M032-32#176#208
12M → 14M3*11-8#208#216
14M → 16M258+17#216#199
16M → 18M474-70#199#269
18M → 20M315-12#269#281
20M → 22M080-80#281#361
22M → 24M4158-154#361#515
24M → Finish1195-194#515#709
TOTALS61*604-543

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

📊

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

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events