Boston Marathon logo
BOSTON MARATHON 2023

Andrew Githaiga

Bib: 14106•M

VA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 40%
Division (M50-54)
#0 / 2052
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:50/mi
24:21
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
48:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:11:48
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:35:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:40:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:59:05
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:23:33
↑ 181↓ 1480.2%
20M
7:45/mi
2:34:05
↑ 64↓ 500.2%
21M
8:22/mi
2:42:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:48:01
↑ 17↓ 861.7%
23M
7:49/mi
2:57:48
↑ 23↓ 630.6%
24M
7:31/mi
3:05:19
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:11:48
↓ 200.3%
25.2M
8:19/mi
3:14:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:12/mi
3:22:00
↑ 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⚖️ Balanced
Distance13.11 mi
Time1:40:32
Pace7:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:28
Pace7:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2424:217:5024:21
7:50
-
10K
6.21 mi11:17:1248:097:4523:48
7:40
-0:10
15K
9.32 mi11:40:511:11:487:4223:39
7:37
-0:03
20K
12.43 mi12:04:301:35:277:4123:39
7:37
0:00
Half
13.11 mi12:09:351:40:327:405:05
7:27
-0:10
25K
15.53 mi12:28:081:59:057:4018:33
7:39
+0:12
30K
18.64 mi12:52:362:23:337:4224:28
7:53
+0:14
20M
20.00 mi13:03:082:34:057:4210:32
7:45
-0:08
21M
21.00 mi13:11:302:42:277:448:22
8:22
+0:37
35K
21.75 mi13:17:042:48:017:445:34
7:26
-0:56
23M
23.00 mi13:26:512:57:487:449:47
7:49
+0:23
24M
24.00 mi13:34:223:05:197:437:31
7:31
-0:18
40K
24.85 mi13:40:513:11:487:436:29
7:35
+0:04
25.2M
25.20 mi13:43:433:14:407:432:52
8:19
+0:44
Finish
26.22 mi13:51:033:22:007:437:20
7:12
-1:07

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

7:12 /mi

Average Pace

7:43 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:46

94% of race

Time at Steady Pace

11:14

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi10:53:2424:217:5024:21
7:50
#12700
10K
6.21 mi11:17:1248:097:4523:48
7:40
#12250
15K
9.32 mi11:40:511:11:487:4223:39
7:37
#11803
20K
12.43 mi12:04:301:35:277:4123:39
7:37
#11350
Half
13.11 mi12:09:351:40:327:405:05
7:27
#11257
25K
15.53 mi12:28:081:59:057:4018:33
7:39
#11028
30K
18.64 mi12:52:362:23:337:4224:28
7:53
#10774
20M
20.00 mi13:03:082:34:057:4210:32
7:45
#10580
21M
21.00 mi13:11:302:42:277:448:22
8:22
#10497
35K
21.75 mi13:17:042:48:017:445:34
7:26
#10390
23M
23.00 mi13:26:512:57:487:449:47
7:49
#10251
24M
24.00 mi13:34:223:05:197:437:31
7:31
#10115
40K
24.85 mi13:40:513:11:487:436:29
7:35
#9968
25.2M
25.20 mi13:43:433:14:407:432:52
8:19
#9920
Finish
26.22 mi13:51:033:22:007:437:20
7:12
#9723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi127009399939911108(Top 42%)8677(Top 57%)8677(Top 423%)
10K6.21 mi3.10 mi12250+4509228+1719228+17111862(Top 45%)9051(Top 60%)9051(Top 441%)
15K9.32 mi3.11 mi11803+4478997+2318997+23111108(Top 42%)8677(Top 57%)8677(Top 423%)
20K12.43 mi3.11 mi11350+4538806+1918806+19110160(Top 38%)8158(Top 54%)8158(Top 398%)
Half13.11 mi0.68 mi11257+938765+418765+419780(Top 37%)7973(Top 53%)7973(Top 389%)
25K15.53 mi2.42 mi11028+2298640+1258640+1259903(Top 37%)7928(Top 52%)7928(Top 386%)
30K18.64 mi3.11 mi10774+2548471+1698471+1699934(Top 37%)7793(Top 51%)7793(Top 380%)
20M20.00 mi1.36 mi10580+1948350+1218350+1218515(Top 32%)6907(Top 46%)6907(Top 337%)
21M21.00 mi1.00 mi10497+838278+728278+729617(Top 36%)7404(Top 49%)7404(Top 361%)
35K21.75 mi0.75 mi10390+1078213+658213+658084(Top 30%)6555(Top 43%)6555(Top 319%)
23M23.00 mi1.25 mi10251+1398114+998114+998501(Top 32%)6702(Top 44%)6702(Top 327%)
24M24.00 mi1.00 mi10115+1368022+928022+927814(Top 29%)6209(Top 41%)6209(Top 303%)
40K24.85 mi0.85 mi9968+1477908+1147908+1147217(Top 27%)5765(Top 38%)5765(Top 281%)
25.2M25.20 mi0.35 mi9920+487868+407868+408357(Top 31%)6389(Top 42%)6389(Top 311%)
Finish26.22 mi1.02 mi9723+1977736+1327736+1326402(Top 24%)5210(Top 34%)5210(Top 254%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11108

Males

8677

M50-54

8677

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11862

Males

9051

M50-54

9051

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11108

Males

8677

M50-54

8677

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10160

Males

8158

M50-54

8158

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9780

Males

7973

M50-54

7973

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9903

Males

7928

M50-54

7928

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9934

Males

7793

M50-54

7793

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8515

Males

6907

M50-54

6907

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9617

Males

7404

M50-54

7404

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8084

Males

6555

M50-54

6555

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8501

Males

6702

M50-54

6702

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7814

Males

6209

M50-54

6209

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7217

Males

5765

M50-54

5765

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8357

Males

6389

M50-54

6389

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6402

Males

5210

M50-54

5210

Passing Analysis

Category:
Athletes Passed
3385*
Passed By
408
Net Change
+2977
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12700
5K → 10K600150+450#12700#12250
10K → 15K49649+447#12250#11803
15K → 20K46714+453#11803#11350
20K → Half963+93#11350#11257
Half → 25K25324+229#11257#11028
25K → 30K31763+254#11028#10774
30K → 20M202*8+194#10774#10580
20M → 21M12340+83#10580#10497
21M → 35K1125+107#10497#10390
35K → 23M15819+139#10390#10251
23M → 24M1448+136#10251#10115
24M → 40K155*8+147#10115#9968
40K → 25.2M579+48#9968#9920
25.2M → Finish205*8+197#9920#9723
TOTALS3385*408+2977

* 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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing