Boston Marathon logo
BOSTON MARATHON 2024

Prashanth Narasimhan

Bib: 3309•M

OR

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 21%
Division (M18-39)
#0 / 4849
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:53/mi
21:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
43:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:05:36
↑ 67↓ 78
20K· 12.43 mi
7:03/mi
1:27:31
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:32:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:49:25
↑ 66↓ 880.2%
30K· 18.64 mi
7:10/mi
2:11:40
↑ 181↓ 1480.2%
20M
7:05/mi
2:21:17
↑ 64↓ 500.2%
21M
7:08/mi
2:28:25
↑ 106↓ 241.6%
35K· 21.75 mi
6:34/mi
2:33:20
↑ 17↓ 861.7%
23M
6:39/mi
2:41:40
↑ 23↓ 630.6%
24M
6:36/mi
2:48:16
↓ 821.3%
40K· 24.85 mi
6:47/mi
2:54:04
↓ 200.3%
25.2M
7:09/mi
2:56:32
↑ 13↓ 160.2%
Finish· 26.22 mi
6:30/mi
3:03:09
↑ 22↓ 21

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 Half
Distance13.11 mi
Time1:32:17
Pace7:02 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:30:52
Pace6:56 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3721:226:5321:22
6:53
-
10K
6.21 mi10:45:1743:026:5621:40
6:58
+0:05
15K
9.32 mi11:07:511:05:367:0222:34
7:16
+0:18
20K
12.43 mi11:29:461:27:317:0321:55
7:03
-0:13
Half
13.11 mi11:34:321:32:177:024:46
6:59
-0:04
25K
15.53 mi11:51:401:49:257:0317:08
7:04
+0:05
30K
18.64 mi12:13:552:11:407:0422:15
7:10
+0:06
20M
20.00 mi12:23:322:21:177:049:37
7:05
-0:05
21M
21.00 mi12:30:402:28:257:047:08
7:08
+0:03
35K
21.75 mi12:35:352:33:207:034:55
6:34
-0:34
23M
23.00 mi12:43:552:41:407:028:20
6:39
+0:05
24M
24.00 mi12:50:312:48:167:016:36
6:36
-0:03
40K
24.85 mi12:56:192:54:047:005:48
6:47
+0:11
25.2M
25.20 mi12:58:472:56:327:002:28
7:09
+0:22
Finish
26.22 mi13:05:243:03:096:596:37
6:30
-0:39

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

6:30 /mi

Average Pace

6:59 /mi

Slowest Pace

7:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:52

74% of race

Time at Steady Pace

47:17

26% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:59 /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
5K
3.11 mi10:23:3721:226:5321:22
6:53
#6229
10K
6.21 mi10:45:1743:026:5621:40
6:58
#6336
15K
9.32 mi11:07:511:05:367:0222:34
7:16
#6835
20K
12.43 mi11:29:461:27:317:0321:55
7:03
#6431
Half
13.11 mi11:34:321:32:177:024:46
6:59
#6376
25K
15.53 mi11:51:401:49:257:0317:08
7:04
#5988
30K
18.64 mi12:13:552:11:407:0422:15
7:10
#5371
20M
20.00 mi12:23:322:21:177:049:37
7:05
#5034
21M
21.00 mi12:30:402:28:257:047:08
7:08
#4696
35K
21.75 mi12:35:352:33:207:034:55
6:34
#4472
23M
23.00 mi12:43:552:41:407:028:20
6:39
#4069
24M
24.00 mi12:50:312:48:167:016:36
6:36
#3830
40K
24.85 mi12:56:192:54:047:005:48
6:47
#3652
25.2M
25.20 mi12:58:472:56:327:002:28
7:09
#3540
Finish
26.22 mi13:05:243:03:096:596:37
6:30
#3380
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6229561556157899(Top 31%)6663(Top 46%)6663(Top 137%)
10K6.21 mi3.10 mi6336-1075671-565671-566477(Top 25%)5744(Top 39%)5744(Top 118%)
15K9.32 mi3.11 mi6835-4996009-3386009-3387899(Top 31%)6663(Top 46%)6663(Top 137%)
20K12.43 mi3.11 mi6431+4045705+3045705+3045535(Top 22%)4984(Top 34%)4984(Top 103%)
Half13.11 mi0.68 mi6376+555656+495656+495605(Top 22%)5026(Top 34%)5026(Top 104%)
25K15.53 mi2.42 mi5988+3885351+3055351+3054649(Top 18%)4218(Top 29%)4218(Top 87%)
30K18.64 mi3.11 mi5371+6174838+5134838+5133618(Top 14%)3302(Top 23%)3302(Top 68%)
20M20.00 mi1.36 mi5034+3374574+2644574+2642680(Top 10%)2483(Top 17%)2483(Top 51%)
21M21.00 mi1.00 mi4696+3384281+2934281+2931406(Top 6%)1327(Top 9%)1327(Top 27%)
35K21.75 mi0.75 mi4472+2244090+1914090+1911486(Top 6%)1398(Top 10%)1398(Top 29%)
23M23.00 mi1.25 mi4069+4033735+3553735+355975(Top 4%)920(Top 6%)920(Top 19%)
24M24.00 mi1.00 mi3830+2393523+2123523+2121169(Top 5%)1092(Top 7%)1092(Top 23%)
40K24.85 mi0.85 mi3652+1783366+1573366+1571274(Top 5%)1175(Top 8%)1175(Top 24%)
25.2M25.20 mi0.35 mi3540+1123260+1063260+106810(Top 3%)747(Top 5%)747(Top 15%)
Finish26.22 mi1.02 mi3380+1603111+1493111+1491389(Top 5%)1264(Top 9%)1264(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

7899

Males

6663

M18-39

6663

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6477

Males

5744

M18-39

5744

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

7899

Males

6663

M18-39

6663

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

5535

Males

4984

M18-39

4984

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5605

Males

5026

M18-39

5026

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4649

Males

4218

M18-39

4218

25K→30K

15.5 - 18.6 mi

Top 14%
×9story building
+181ft-148ft

Overall

3618

Males

3302

M18-39

3302

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2680

Males

2483

M18-39

2483

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1406

Males

1327

M18-39

1327

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1486

Males

1398

M18-39

1398

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

975

Males

920

M18-39

920

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1169

Males

1092

M18-39

1092

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1274

Males

1175

M18-39

1175

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

810

Males

747

M18-39

747

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1389

Males

1264

M18-39

1264

Passing Analysis

Category:
Athletes Passed
3678
Passed By
829
Net Change
+2849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6229
5K → 10K139246-107#6229#6336
10K → 15K44543-499#6336#6835
15K → 20K41612+404#6835#6431
20K → Half649+55#6431#6376
Half → 25K40113+388#6376#5988
25K → 30K6203+617#5988#5371
30K → 20M3370+337#5371#5034
20M → 21M3380+338#5034#4696
21M → 35K2251+224#4696#4472
35K → 23M4030+403#4472#4069
23M → 24M2390+239#4069#3830
24M → 40K1780+178#3830#3652
40K → 25.2M1120+112#3652#3540
25.2M → Finish1622+160#3540#3380
TOTALS3678829+2849
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing