San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Ashwin Natarajan

Fremont, CA

Bib: 20672 M 47

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
10:35/mi
21:10
→ flat
12 ft elev
4M
11:06/mi
43:21
↑ 67↓ 69
10 ft elev
6M
11:38/mi
1:06:38
↑ 1231.1%
126 ft elev
8M
11:20/mi
1:29:17
↑ 166↓ 531.1%
246 ft elev
9.6M
11:20/mi
1:47:25
↑ 68↓ 1931.5%
126 ft elev
10M
22:42/mi
1:56:29
↓ 241.1%
90 ft elev
10.5M
5:32/mi
1:59:15
↓ 732.7%
18 ft elev
12M
17:35/mi
2:25:38
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
11:42/mi
2:38:37
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:38
Pace11:06 /mi
2nd Half
Distance7.11 mi
Time1:31:59
Pace12:56 /mi
📊Positive Split: 38.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:01:4921:1010:3521:10
10:35
-
4M
4.00 mi07:24:0043:2110:5022:11
11:06
+0:31
6M
6.00 mi07:47:171:06:3811:0623:17
11:38
+0:32
8M
8.00 mi08:09:561:29:1711:1022:39
11:20
-0:18
9.6M
9.60 mi08:28:041:47:2511:1118:08
11:20
0:00
10M
10.00 mi08:37:081:56:2911:399:04
22:42
+11:22
10.5M
10.50 mi08:39:541:59:1511:212:46
5:32
-17:10
12M
12.00 mi09:06:172:25:3812:0826:23
17:35
+12:03
Finish
13.11 mi09:19:162:38:3712:0612:59
11:42
-5:53

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

5:32 /mi

Average Pace

12:06 /mi

Slowest Pace

22:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46

2% of race

Time at Steady Pace

2:00:24

76% of race

Time at Slower Pace

35:27

22% of race

Average Pace: 12:06 /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 mi07:01:4921:1010:3521:10
10:35
#4061
4M
4.00 mi07:24:0043:2110:5022:11
11:06
#4181
6M
6.00 mi07:47:171:06:3811:0623:17
11:38
#4336
8M
8.00 mi08:09:561:29:1711:1022:39
11:20
#4172
9.6M
9.60 mi08:28:041:47:2511:1118:08
11:20
#4425
10M
10.00 mi08:37:081:56:2911:399:04
22:42
#4465
10.5M
10.50 mi08:39:541:59:1511:212:46
5:32
#4462
12M
12.00 mi09:06:172:25:3812:0826:23
17:35
#4658
Finish
13.11 mi09:19:162:38:3712:0612:59
11:42
#4633
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 71%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:50

Segment Time

13:09/mi

Pace

0.90 mi

Distance

Overall

4691

Men

2809

Division

156

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2M2.00 mi2.00 mi406126151445209(Top 79%)3019(Top 83%)177(Top 80%)
4M4.00 mi2.00 mi4181-1202671-56145-14343(Top 66%)2737(Top 76%)148(Top 67%)
6M6.00 mi2.00 mi4336-1552741-70148-34685(Top 71%)2909(Top 80%)162(Top 74%)
8M8.00 mi2.00 mi4172+1642687+54145+33897(Top 59%)2530(Top 70%)139(Top 63%)
9.6M9.60 mi1.60 mi4425-2532775-88147-25324(Top 81%)3065(Top 85%)166(Top 75%)
10M10.00 mi0.40 mi4465-402783-8148-14847(Top 74%)2876(Top 79%)164(Top 75%)
10.5M10.50 mi0.50 mi4462+32781+2147+14489(Top 68%)2751(Top 76%)156(Top 71%)
12M12.00 mi1.50 mi4658-1962870-89156-95209(Top 79%)3019(Top 83%)177(Top 80%)
Finish13.11 mi1.11 mi4633+252851+19154+24688(Top 71%)2777(Top 77%)159(Top 72%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 79%
~flat
+5ft-3ft

Overall

5209

Males

3019

M45-49

177

2M→4M

2.0 - 4.0 mi

Top 66%
×4story building
+67ft-69ft

Overall

4343

Males

2737

M45-49

148

4M→6M

4.0 - 6.0 mi

Top 71%
×9story building
+123ft-9ft

Overall

4685

Males

2909

M45-49

162

6M→8M

6.0 - 8.0 mi

Top 59%
×12story building
+166ft-53ft

Overall

3897

Males

2530

M45-49

139

8M→9.6M

8.0 - 9.6 mi

Top 81%
×13story building
+68ft-193ft

Overall

5324

Males

3065

M45-49

166

9.6M→10M

9.6 - 10.0 mi

Top 74%
×2story building
+0ft-24ft

Overall

4847

Males

2876

M45-49

164

10M→10.5M

10.0 - 10.5 mi

Top 68%
×6story building
+1ft-73ft

Overall

4489

Males

2751

M45-49

156

10.5M→12M

10.5 - 12.0 mi

Top 79%
×21story building
+280ft-26ft

Overall

5209

Males

3019

M45-49

177

12M→Finish

12.0 - 13.1 mi

Top 71%
×7story building
+14ft-89ft

Overall

4688

Males

2777

M45-49

159

Passing Analysis

Category:
Athletes Passed
629*
Passed By
1201
Net Change
-572
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4061
2M → 4M142262-120#4061#4181
4M → 6M63*218-155#4181#4336
6M → 8M258*94+164#4336#4172
8M → 9.6M22275-253#4172#4425
9.6M → 10M4181-40#4425#4465
10M → 10.5M118+3#4465#4462
10.5M → 12M28*224-196#4462#4658
12M → Finish64*39+25#4658#4633
TOTALS629*1201-572

* 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