Boston Marathon logo
BOSTON MARATHON 2023

Aaron Cziraky

Bib: 2426•M

NC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:31
Rank: #1379
Start → 5K
19:31 | 6:17/mi
10K· 6.21 mi
38:39
Rank: #1254 (+125)
5K → 10K
19:08 | 6:10/mi
15K· 9.32 mi
58:04
Rank: #1289 (-35)
10K → 15K
19:25 | 6:15/mi
20K· 12.43 mi
1:17:41
Rank: #1321 (-32)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:21:54
Rank: #1313 (+8)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:37:18
Rank: #1323 (-10)
Half → 25K
15:24 | 6:21/mi
30K· 18.64 mi
1:57:17
Rank: #1310 (+13)
25K → 30K
19:59 | 6:26/mi
20M
2:06:02
Rank: #1297 (+13)
30K → 20M
8:45 | 6:26/mi
21M
2:12:50
Rank: #1289 (+8)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:17:34
Rank: #1294 (-5)
21M → 35K
4:44 | 6:20/mi
23M
2:25:47
Rank: #1292 (+2)
35K → 23M
8:13 | 6:34/mi
24M
2:32:09
Rank: #1282 (+10)
23M → 24M
6:22 | 6:22/mi
40K· 24.85 mi
2:37:49
Rank: #1291 (-9)
24M → 40K
5:40 | 6:38/mi
25.2M
2:40:18
Rank: #1300 (-9)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:46:52
Rank: #1308 (-8)
25.2M → Finish
6:34 | 6:27/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 HalfFaster
Distance13.11 mi
Time1:21:54
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:24:58
Pace6:29 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1319:316:1719:31
6:17
-
10K
6.21 mi10:39:2138:396:1319:08
6:10
-0:07
15K
9.32 mi10:58:4658:046:1419:25
6:15
+0:05
20K
12.43 mi11:18:231:17:416:1519:37
6:19
+0:04
Half
13.11 mi11:22:361:21:546:154:13
6:11
-0:08
25K
15.53 mi11:38:001:37:186:1615:24
6:21
+0:10
30K
18.64 mi11:57:591:57:176:1719:59
6:26
+0:05
20M
20.00 mi12:06:442:06:026:188:45
6:26
0:00
21M
21.00 mi12:13:322:12:506:206:48
6:48
+0:22
35K
21.75 mi12:18:162:17:346:204:44
6:20
-0:28
23M
23.00 mi12:26:292:25:476:208:13
6:34
+0:14
24M
24.00 mi12:32:512:32:096:206:22
6:22
-0:12
40K
24.85 mi12:38:312:37:496:215:40
6:38
+0:16
25.2M
25.20 mi12:41:002:40:186:222:29
7:12
+0:34
Finish
26.22 mi12:47:342:46:526:226:34
6:27
-0:45

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

6:10 /mi

Average Pace

6:22 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:35

94% of race

Time at Steady Pace

9:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:22 /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 mi10:20:1319:316:1719:31
6:17
#1379
10K
6.21 mi10:39:2138:396:1319:08
6:10
#1254
15K
9.32 mi10:58:4658:046:1419:25
6:15
#1289
20K
12.43 mi11:18:231:17:416:1519:37
6:19
#1321
Half
13.11 mi11:22:361:21:546:154:13
6:11
#1313
25K
15.53 mi11:38:001:37:186:1615:24
6:21
#1323
30K
18.64 mi11:57:591:57:176:1719:59
6:26
#1310
20M
20.00 mi12:06:442:06:026:188:45
6:26
#1297
21M
21.00 mi12:13:322:12:506:206:48
6:48
#1289
35K
21.75 mi12:18:162:17:346:204:44
6:20
#1294
23M
23.00 mi12:26:292:25:476:208:13
6:34
#1292
24M
24.00 mi12:32:512:32:096:206:22
6:22
#1282
40K
24.85 mi12:38:312:37:496:215:40
6:38
#1291
25.2M
25.20 mi12:41:002:40:186:222:29
7:12
#1300
Finish
26.22 mi12:47:342:46:526:226:34
6:27
#1308
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1379131113111427(Top 5%)1360(Top 9%)1360(Top 61%)
10K6.21 mi3.10 mi1254+1251189+1221189+1221202(Top 5%)1139(Top 8%)1139(Top 51%)
15K9.32 mi3.11 mi1289-351226-371226-371427(Top 5%)1360(Top 9%)1360(Top 61%)
20K12.43 mi3.11 mi1321-321258-321258-321442(Top 5%)1377(Top 9%)1377(Top 61%)
Half13.11 mi0.68 mi1313+81251+71251+71291(Top 5%)1239(Top 8%)1239(Top 55%)
25K15.53 mi2.42 mi1323-101262-111262-111521(Top 6%)1457(Top 10%)1457(Top 65%)
30K18.64 mi3.11 mi1310+131252+101252+101320(Top 5%)1262(Top 8%)1262(Top 56%)
20M20.00 mi1.36 mi1297+131239+131239+131244(Top 5%)1185(Top 8%)1185(Top 53%)
21M21.00 mi1.00 mi1289+81233+61233+61393(Top 5%)1327(Top 9%)1327(Top 59%)
35K21.75 mi0.75 mi1294-51235-21235-21648(Top 6%)1566(Top 10%)1566(Top 70%)
23M23.00 mi1.25 mi1292+21234+11234+11640(Top 6%)1558(Top 10%)1558(Top 70%)
24M24.00 mi1.00 mi1282+101223+111223+111558(Top 6%)1474(Top 10%)1474(Top 66%)
40K24.85 mi0.85 mi1291-91230-71230-72003(Top 8%)1873(Top 12%)1873(Top 84%)
25.2M25.20 mi0.35 mi1300-91239-91239-92452(Top 9%)2265(Top 15%)2265(Top 101%)
Finish26.22 mi1.02 mi1308-81245-61245-62190(Top 8%)2030(Top 13%)2030(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1427

Males

1360

M40-44

1360

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1202

Males

1139

M40-44

1139

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1427

Males

1360

M40-44

1360

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1442

Males

1377

M40-44

1377

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1291

Males

1239

M40-44

1239

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1521

Males

1457

M40-44

1457

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1320

Males

1262

M40-44

1262

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1244

Males

1185

M40-44

1185

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1393

Males

1327

M40-44

1327

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1648

Males

1566

M40-44

1566

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1640

Males

1558

M40-44

1558

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1558

Males

1474

M40-44

1474

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2003

Males

1873

M40-44

1873

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2452

Males

2265

M40-44

2265

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2190

Males

2030

M40-44

2030

Passing Analysis

Category:
Athletes Passed
457
Passed By
386
Net Change
+71
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1379
5K → 10K14924+125#1379#1254
10K → 15K3065-35#1254#1289
15K → 20K3264-32#1289#1321
20K → Half113+8#1321#1313
Half → 25K2434-10#1313#1323
25K → 30K4936+13#1323#1310
30K → 20M2613+13#1310#1297
20M → 21M3123+8#1297#1289
21M → 35K1217-5#1289#1294
35K → 23M2927+2#1294#1292
23M → 24M2515+10#1292#1282
24M → 40K1322-9#1282#1291
40K → 25.2M615-9#1291#1300
25.2M → Finish2028-8#1300#1308
TOTALS457386+71
📊

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

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing